{"title":"Demco Coupler Lock Compatibility Guide (Stamped Vs. Cast)","description":null,"products":[{"product_id":"model-2178-b","title":"Model 2178-B","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003eFITS 2'' BullDog Trailer Couplers (Puck Lock Included)\u003c\/p\u003e\n\u003cp\u003eModel 2178-B was designed to fit 2'' BullDog style trailer couplers. This style trailer coupler is usually found on heavy duty trailers such as those used in commercial applications and heavier weight-rated trailer applications. In most cases, Bulldog style trailer couplers will be found on commercial trailers, but in some cases trailer manufacturers offer Bulldog couplers on non-commercial trailers as an upgrade.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eDesigning the best coupler locks is not an easy task. We pride ourselves on producing a \"glove like\" fit coupler lock. Rest assured that Proven Industries trailer lock products will leave you with simply the best coupler lock on the market. \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFine Print\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003eTrailer coupler lock model 2178-B may not fit all trailer couplers. Please look at trailer coupler lock index pictures below, if you do not see your trailer coupler picture please fill out contact form to ensure you will get the correct trailer coupler lock. \u003cspan\u003e\u003cstrong\u003eThis style will  allow you to secure safety chains in lock.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1653\/1653\/files\/2178-B_large.jpg?v=1495128081\" alt=\"\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*Please note, product pictures may not represent current model, as products are revised.  All locks are now upgraded to 7 pin tubular lock at no additional cost.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eLock Core\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e\u003cb\u003eCobra (Standard)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra is a patented key system that was developed for the high-security needs in the vending industries. The Cobra tubular keyway is like no other with its tubular keyway, this unique feature stops anyone from going to a hardware store to copy your key. This product offers a high-security solution for those that are looking for excellent exterior performance. Cobra comes standard in all of our products at no additional cost.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra system is geared for the business owner looking for a great performing lock system at an affordable price with key control.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cb\u003eProven Disc-Detainer (Upgrade Option)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Proven Disc Detainer Lock was developed for high-security situations where  minimum maintenance is not possible. This particular lock is virtually impossible to pick due to its rotating disk and requires special lock picks and skills needed in order to pick. \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDisc detainer locks are not all that common in everyday use. Mainly this style of lock is reserved for high-end locks. These lock perform well in extreme weather conditions with minimum if any maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMedeco M3 (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco comes as one of the oldest High-security lock manufacturers in the USA. You will find this high-security lock in most prisons, government facilities, and even the White House! This particular lock is virtually impossible to pick due to its rotating pins that not only need to be at the right height but the right rotation in order to unlock.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco is typically needed for the high-security needs of companies that need key control or grandmaster key solutions. All parts are machined out of brass and hardened steel, for the combination of great exterior performance and high-security needs.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAbloy (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAbloy cylinders provide \u003c\/span\u003e\u003cspan\u003ehigh-security protection\u003c\/span\u003e\u003cspan\u003e by using a unique \u003c\/span\u003e\u003cspan\u003erotating disc mechanism\u003c\/span\u003e\u003cspan\u003e. Unlike standard locks, they are virtually \u003c\/span\u003e\u003cspan\u003eunpickable\u003c\/span\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan\u003ebump-\u003cwbr\u003eproof\u003c\/wbr\u003e\u003c\/span\u003e\u003cspan\u003e, and designed to withstand harsh road conditions and outdoor environments without jamming.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*Medeco and Abloy is available upon request for an additional fee. Please call customer support for additional information.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Proven Locks","offers":[{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":14376395407426,"sku":"95-BLU-KD","price":260.0,"currency_code":"USD","in_stock":true},{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":14376395440194,"sku":"95-BLU-KA","price":261.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":15933734092866,"sku":"95-BLK-KD","price":260.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":15933737861186,"sku":"95-BLK-KA","price":261.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid 303 Stainless Steel) (+$100.00) \/ Keyed Differently","offer_id":14376395538498,"sku":"95-SS-KD","price":360.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid 303 Stainless Steel) (+$100.00) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":14376395571266,"sku":"95-SS-KA","price":361.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1653\/1653\/files\/6-2516-B-_Square-_Main_Image-_Blue_af11869c-5261-49ed-a7ca-68bee83a90ee.jpg?v=1760653080"},{"product_id":"model-2517-b1","title":"Model 2517-B1","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cdiv style=\"text-align: center;\" class=\"content-tab\"\u003e\n\u003cp style=\"text-align: left;\"\u003eModel 2517-B1 was designed to fit the BullDog style trailer. This style trailer coupler is usually found on enclosed and equipment trailers. In most cases, Bulldog style couplers will be found on commercial trailers, but in some cases trailer manufacturers offer Bulldog couplers on non-commercial trailers as an upgrade.\u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003eThis model is specifically for BullDog couplers that have a Dome or Square shape on top.  Please refer to the fine print section for further details. \u003c\/p\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cspan\u003eDesigning the best coupler locks is not an easy task. We pride ourselves on producing a glove like\" fit coupler lock. Rest assured that Proven Industries trailer lock products will leave you with simply the best coupler lock on the market. This model will secure most size safety chains.  \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFine Print\u003c\/h2\u003e\n\u003cdiv style=\"text-align: center;\" class=\"content-tab\"\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1653\/1653\/files\/image-2024-02-29T125507.647_02502354-9247-4b16-b747-97186bb802ff.jpg?v=1722540390\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cp\u003e*Please note, product pictures may not represent current model, as products are revised.  All locks are now upgraded to 7 pin tubular lock at no additional cost.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eLock Core\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e\u003cb\u003eCobra (Standard)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra is a patented key system that was developed for the high-security needs in the vending industries. The Cobra tubular keyway is like no other with its tubular keyway, this unique feature stops anyone from going to a hardware store to copy your key. This product offers a high-security solution for those that are looking for excellent exterior performance. Cobra comes standard in all of our products at no additional cost.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra system is geared for the business owner looking for a great performing lock system at an affordable price with key control.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cb\u003eProven Disc-Detainer (Upgrade Option)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Proven Disc Detainer Lock was developed for high-security situations where  minimum maintenance is not possible. This particular lock is virtually impossible to pick due to its rotating disk and requires special lock picks and skills needed in order to pick. \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDisc detainer locks are not all that common in everyday use. Mainly this style of lock is reserved for high-end locks. These lock perform well in extreme weather conditions with minimum if any maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMedeco M3 (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco comes as one of the oldest High-security lock manufacturers in the USA. You will find this high-security lock in most prisons, government facilities, and even the White House! This particular lock is virtually impossible to pick due to its rotating pins that not only need to be at the right height but the right rotation in order to unlock.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco is typically needed for the high-security needs of companies that need key control or grandmaster key solutions. All parts are machined out of brass and hardened steel, for the combination of great exterior performance and high-security needs.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAbloy (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAbloy cylinders provide \u003c\/span\u003e\u003cspan\u003ehigh-security protection\u003c\/span\u003e\u003cspan\u003e by using a unique \u003c\/span\u003e\u003cspan\u003erotating disc mechanism\u003c\/span\u003e\u003cspan\u003e. Unlike standard locks, they are virtually \u003c\/span\u003e\u003cspan\u003eunpickable\u003c\/span\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan\u003ebump-\u003cwbr\u003eproof\u003c\/wbr\u003e\u003c\/span\u003e\u003cspan\u003e, and designed to withstand harsh road conditions and outdoor environments without jamming.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*Medeco and Abloy is available upon request for an additional fee. Please call customer support for additional information.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Proven Locks","offers":[{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":39701887680708,"sku":"16-BLU-KD","price":265.0,"currency_code":"USD","in_stock":true},{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":39701887713476,"sku":"16-BLU-KA","price":266.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":39701887811780,"sku":"16-BLK-KD","price":265.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":39701887844548,"sku":"16-BLK-KA","price":266.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid Stainless Steel) (+$100.00) \/ Keyed Differently","offer_id":39701887942852,"sku":"16-SS-KD","price":365.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid Stainless Steel) (+$100.00) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":39701887975620,"sku":"16-SS-KA","price":366.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1653\/1653\/files\/16-_2517-B1-_Main_Image-_Blue_1.jpg?v=1742930009"},{"product_id":"model-2178-d","title":"Model 2178-D","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003eModel 2178-D is designed to fit Demco raised latch Stamped couplers (as seen in the FINE PRINT section). \u003cspan\u003eThis model was manufactured with a formed carbon steel outer housing to completely encapsulate the coupler head and latch. This lock model will be able to secure most safety chains up to 3\/8\" in the dedicated chain locking compartment.\u003c\/span\u003e\u003ci\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003eIf you have a 2\" Cast Demco Coupler, please see \u003cspan style=\"color: #2b00ff;\"\u003e\u003cstrong\u003e\u003ca style=\"color: #2b00ff;\" title=\"2178-D1\" href=\"https:\/\/www.provenlocks.com\/products\/model-2178-d1?_pos=6\u0026amp;_sid=ad4d65408\u0026amp;_ss=r\"\u003eModel 2178-D1\u003c\/a\u003e .\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003eDesigning the best coupler locks is not an easy task. We pride ourselves on producing a \"glove like\" fit coupler lock. Rest assured that Proven Industries trailer lock products will leave you with simply the best coupler lock on the market. In addition, no other trailer coupler locks can secure your safety chains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFine Print\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1653\/1653\/files\/2178-D_Coupler_Fit_480x480.png?v=1648487749\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*Please note, product pictures may not represent current model, as products are revised.  All locks are now upgraded to 7 pin tubular lock at no additional cost.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eLock Core\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e\u003cb\u003eCobra (Standard)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra is a patented key system that was developed for the high-security needs in the vending industries. The Cobra tubular keyway is like no other with its tubular keyway, this unique feature stops anyone from going to a hardware store to copy your key. This product offers a high-security solution for those that are looking for excellent exterior performance. Cobra comes standard in all of our products at no additional cost.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra system is geared for the business owner looking for a great performing lock system at an affordable price with key control.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cb\u003eProven Disc-Detainer (Upgrade Option)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Proven Disc Detainer Lock was developed for high-security situations where  minimum maintenance is not possible. This particular lock is virtually impossible to pick due to its rotating disk and requires special lock picks and skills needed in order to pick. \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDisc detainer locks are not all that common in everyday use. Mainly this style of lock is reserved for high-end locks. These lock perform well in extreme weather conditions with minimum if any maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMedeco M3 (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco comes as one of the oldest High-security lock manufacturers in the USA. You will find this high-security lock in most prisons, government facilities, and even the White House! This particular lock is virtually impossible to pick due to its rotating pins that not only need to be at the right height but the right rotation in order to unlock.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco is typically needed for the high-security needs of companies that need key control or grandmaster key solutions. All parts are machined out of brass and hardened steel, for the combination of great exterior performance and high-security needs.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAbloy (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAbloy cylinders provide \u003c\/span\u003e\u003cspan\u003ehigh-security protection\u003c\/span\u003e\u003cspan\u003e by using a unique \u003c\/span\u003e\u003cspan\u003erotating disc mechanism\u003c\/span\u003e\u003cspan\u003e. Unlike standard locks, they are virtually \u003c\/span\u003e\u003cspan\u003eunpickable\u003c\/span\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan\u003ebump-\u003cwbr\u003eproof\u003c\/wbr\u003e\u003c\/span\u003e\u003cspan\u003e, and designed to withstand harsh road conditions and outdoor environments without jamming.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*Medeco and Abloy is available upon request for an additional fee. Please call customer support for additional information.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e","brand":"Proven Locks","offers":[{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":42614943023345,"sku":"92-BLU-KD","price":250.0,"currency_code":"USD","in_stock":true},{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":42614943056113,"sku":"92-BLU-KA","price":251.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":42614943154417,"sku":"92-BLK-KD","price":250.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":42614943187185,"sku":"92-BLK-KA","price":251.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid 303 Stainless Steel) (+$100.00) \/ Keyed Differently","offer_id":42614943285489,"sku":"92-SS-KD","price":350.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid 303 Stainless Steel) (+$100.00) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":42614943318257,"sku":"92-SS-KA","price":351.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1653\/1653\/files\/13sq-_Main_Image-_Blue.jpg?v=1760470874"},{"product_id":"model-2517-d1","title":"Model 2517-D1","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003eModel 2517-D1 was designed to fit Demco style Cast trailer couplers. This style trailer coupler is usually found on heavy duty enclosed car trailers such as those used in show car transportation applications, Demco style trailer couplers will be found on enclosed car trailers, but in some cases trailer manufacturers offer Demco couplers on non-commercial trailers as an upgrade. If you have a Stamped Demco Coupler Please see \u003cspan style=\"color: #2b00ff;\"\u003e\u003cstrong\u003e\u003ca style=\"color: #2b00ff;\" title=\"2517-D\" href=\"https:\/\/www.provenlocks.com\/products\/model-2517-d?_pos=3\u0026amp;_sid=cd91a49dd\u0026amp;_ss=r\"\u003eModel 2517-D \u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e. \u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"Model 2517-D and 2517-D1\" src=\"https:\/\/www.youtube.com\/embed\/EAzbtTArPfk\" height=\"720\" width=\"1280\"\u003e\u003c\/iframe\u003e\u003cbr\u003e\u003cbr\u003eDesigning the best coupler locks is not an easy task. We pride ourselves on producing a \"glove like\" fit coupler lock. Rest assured that Proven Industries trailer lock products will leave you with simply the best coupler lock on the market. *Product appearance may vary.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFine Print\u003c\/h2\u003e\n\u003cdiv style=\"text-align: start;\" class=\"content-tab\"\u003eTrailer coupler lock model 2517-D1 may not fit all trailer couplers. Please look at trailer coupler lock index pictures below, if you do not see your trailer coupler picture please fill out the contact form to ensure you will get the correct trailer coupler lock. Coupler lock in most cases can secure 5\/16 safety chains hooks, we can not guarantee all chains hooks will fit due to all the different manufactures sizes.\u003cbr\u003e\u003cbr\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1653\/1653\/files\/2517-D1_Coupler_Fit_480x480.png?v=1645645939\"\u003e  \n\u003cp\u003e*Please note, product pictures may not represent current model, as products are revised. All locks are now upgraded to 7 pin tubular lock at no additional cost.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eLock Core\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e\u003cb\u003eCobra (Standard)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra is a patented key system that was developed for the high-security needs in the vending industries. The Cobra tubular keyway is like no other with its tubular keyway, this unique feature stops anyone from going to a hardware store to copy your key. This product offers a high-security solution for those that are looking for excellent exterior performance. Cobra comes standard in all of our products at no additional cost.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra system is geared for the business owner looking for a great performing lock system at an affordable price with key control.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cb\u003eProven Disc-Detainer (Upgrade Option)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Proven Disc Detainer Lock was developed for high-security situations where  minimum maintenance is not possible. This particular lock is virtually impossible to pick due to its rotating disk and requires special lock picks and skills needed in order to pick. \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDisc detainer locks are not all that common in everyday use. Mainly this style of lock is reserved for high-end locks. These lock perform well in extreme weather conditions with minimum if any maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMedeco M3 (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco comes as one of the oldest High-security lock manufacturers in the USA. You will find this high-security lock in most prisons, government facilities, and even the White House! This particular lock is virtually impossible to pick due to its rotating pins that not only need to be at the right height but the right rotation in order to unlock.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco is typically needed for the high-security needs of companies that need key control or grandmaster key solutions. All parts are machined out of brass and hardened steel, for the combination of great exterior performance and high-security needs.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAbloy (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAbloy cylinders provide \u003c\/span\u003e\u003cspan\u003ehigh-security protection\u003c\/span\u003e\u003cspan\u003e by using a unique \u003c\/span\u003e\u003cspan\u003erotating disc mechanism\u003c\/span\u003e\u003cspan\u003e. Unlike standard locks, they are virtually \u003c\/span\u003e\u003cspan\u003eunpickable\u003c\/span\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan\u003ebump-\u003cwbr\u003eproof\u003c\/wbr\u003e\u003c\/span\u003e\u003cspan\u003e, and designed to withstand harsh road conditions and outdoor environments without jamming.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*Medeco and Abloy is available upon request for an additional fee. Please call customer support for additional information.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e","brand":"Proven Locks","offers":[{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":42616172151025,"sku":"16-BLU-KD","price":265.0,"currency_code":"USD","in_stock":true},{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":42616172183793,"sku":"16-BLU-KA","price":266.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":42616172282097,"sku":"16-BLK-KD","price":265.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":42616172314865,"sku":"16-BLK-KA","price":266.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid 303 Stainless Steel) (+$100.00) \/ Keyed Differently","offer_id":42616172413169,"sku":"16-SS-KD","price":365.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid 303 Stainless Steel) (+$100.00) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":42616172445937,"sku":"16-SS-KA","price":366.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1653\/1653\/files\/16-_2517-B1-_Main_Image-_Blue_2.jpg?v=1744686690"},{"product_id":"model-gds-for-demco-gooseneck-couplers-with-ez-latch","title":"Model GDS for Demco Gooseneck Couplers with EZ Latch","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003eModel GDS is designed specifically for Demco Brand Gooseneck Couplers with EZ Latch. This Model will only fit 4\" Square tubes. We also recommend confirming your coupler matches the coupler image above.  \u003cstrong\u003e*THIS LOCK WILL NOT FIT THE BULLDOG or RAM GOOSENECK COUPLERS, \u003c\/strong\u003eplease call if you need help with our gooseneck coupler lock options. \u003c\/p\u003e\n\u003cp\u003eDesigning the best coupler locks is not an easy task. We pride ourselves on producing a \"glove like\" fit coupler lock. Rest assured that Proven Industries trailer lock products will leave you with simply the best coupler lock on the market.\u003c\/p\u003e\n\u003cp\u003e\u003ciframe title=\"Model GDS\" src=\"https:\/\/www.youtube.com\/embed\/QyXrQsKfG_M\" height=\"720\" width=\"1280\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFine Print\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003eModel GDS for Demco Gooseneck Couplers with EZ Latch may not fit all trailer couplers. Please look at trailer coupler lock index pictures above, if you do not see your trailer coupler picture please fill out the contact form to ensure you will get the correct trailer coupler lock. \u003cspan\u003eThis lock will not fit Bulldog or Ram gooseneck couplers\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e *Please note, product pictures may not represent current model, as products are revised.  All locks are now upgraded to 7 pin tubular lock at no additional cost.\u003c\/p\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003ch2\u003eLock Core\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e\u003cb\u003eCobra (Standard)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra is a patented key system that was developed for the high-security needs in the vending industries. The Cobra tubular keyway is like no other with its tubular keyway, this unique feature stops anyone from going to a hardware store to copy your key. This product offers a high-security solution for those that are looking for excellent exterior performance. Cobra comes standard in all of our products at no additional cost.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra system is geared for the business owner looking for a great performing lock system at an affordable price with key control.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cb\u003eProven Disc-Detainer (Upgrade Option)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Proven Disc Detainer Lock was developed for high-security situations where  minimum maintenance is not possible. This particular lock is virtually impossible to pick due to its rotating disk and requires special lock picks and skills needed in order to pick. \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDisc detainer locks are not all that common in everyday use. Mainly this style of lock is reserved for high-end locks. These lock perform well in extreme weather conditions with minimum if any maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMedeco M3 (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco comes as one of the oldest High-security lock manufacturers in the USA. You will find this high-security lock in most prisons, government facilities, and even the White House! This particular lock is virtually impossible to pick due to its rotating pins that not only need to be at the right height but the right rotation in order to unlock.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco is typically needed for the high-security needs of companies that need key control or grandmaster key solutions. All parts are machined out of brass and hardened steel, for the combination of great exterior performance and high-security needs.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAbloy (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAbloy cylinders provide \u003c\/span\u003e\u003cspan\u003ehigh-security protection\u003c\/span\u003e\u003cspan\u003e by using a unique \u003c\/span\u003e\u003cspan\u003erotating disc mechanism\u003c\/span\u003e\u003cspan\u003e. Unlike standard locks, they are virtually \u003c\/span\u003e\u003cspan\u003eunpickable\u003c\/span\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan\u003ebump-\u003cwbr\u003eproof\u003c\/wbr\u003e\u003c\/span\u003e\u003cspan\u003e, and designed to withstand harsh road conditions and outdoor environments without jamming.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*Medeco and Abloy is available upon request for an additional fee. Please call customer support for additional information.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Proven Industries","offers":[{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":43734117187825,"sku":"64-BLU-KD","price":295.0,"currency_code":"USD","in_stock":true},{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":43734117253361,"sku":"64-BLU-KA","price":296.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":43734117318897,"sku":"64-BLK-KD","price":295.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":43734117384433,"sku":"64-BLK-KA","price":296.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid 303 Stainless Steel) (+100.00) \/ Keyed Differently","offer_id":43734117449969,"sku":"64-SS-KD","price":395.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid 303 Stainless Steel) (+100.00) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":43734117515505,"sku":"64-SS-KA","price":396.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1653\/1653\/files\/64-GDS-MainImage-Blue.jpg?v=1708378159"},{"product_id":"model-2517-af-for-atwood-pancake-couplers","title":"Model 2517-AF for Atwood Flat Nose Bolt-on Couplers","description":"\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003eModel 2517-AF is designed to fit Atwood \/ Lippert model 75074 flat nose bolt-on couplers, which fits a 2-5\/16\" ball, and has a 25,000lbs rating. This coupler is typically found on heavy-duty agricultural, industrial or commercial trailers.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003emade in USA with alloy steel\u003c\/li\u003e\n\u003cli\u003epatented functionality\u003c\/li\u003e\n\u003cli\u003edurable powder coat finish\u003c\/li\u003e\n\u003cli\u003eeasy to install\u003c\/li\u003e\n\u003cli\u003esecures coupler and safety chains\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigning the best coupler locks is not an easy task. We pride ourselves on producing a \"glove like\" fit coupler lock. Rest assured that Proven Industries trailer lock products will leave you with simply the best coupler lock on the market.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eFine Print\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\" style=\"text-align: start;\"\u003eTrailer coupler lock model 2517-AF may not fit all trailer couplers. Please look at trailer coupler lock index pictures below, if you do not see your trailer coupler picture, please fill out the contact form to ensure you will get the correct trailer coupler lock. Coupler lock in most cases can secure 5\/16 safety chains hooks, we cannot guarantee all chains hooks will fit due to all the different manufactures sizes.\u003cbr\u003e\u003cbr\u003e    \n\u003cp\u003e*Please note, product pictures may not represent current model, as products are revised. All locks are now upgraded to 7 pin tubular lock at no additional cost.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2\u003eLock Core\u003c\/h2\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e\u003cb\u003eCobra (Standard)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra is a patented key system that was developed for the high-security needs in the vending industries. The Cobra tubular keyway is like no other with its tubular keyway, this unique feature stops anyone from going to a hardware store to copy your key. This product offers a high-security solution for those that are looking for excellent exterior performance. Cobra comes standard in all of our products at no additional cost.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Cobra system is geared for the business owner looking for a great performing lock system at an affordable price with key control.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cb\u003eProven Disc-Detainer (Upgrade Option)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Proven Disc Detainer Lock was developed for high-security situations where  minimum maintenance is not possible. This particular lock is virtually impossible to pick due to its rotating disk and requires special lock picks and skills needed in order to pick. \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDisc detainer locks are not all that common in everyday use. Mainly this style of lock is reserved for high-end locks. These lock perform well in extreme weather conditions with minimum if any maintenance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eMedeco M3 (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco comes as one of the oldest High-security lock manufacturers in the USA. You will find this high-security lock in most prisons, government facilities, and even the White House! This particular lock is virtually impossible to pick due to its rotating pins that not only need to be at the right height but the right rotation in order to unlock.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eApplication\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eMedeco is typically needed for the high-security needs of companies that need key control or grandmaster key solutions. All parts are machined out of brass and hardened steel, for the combination of great exterior performance and high-security needs.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eAbloy (Available upon request, for additional cost)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAbloy cylinders provide \u003c\/span\u003e\u003cspan\u003ehigh-security protection\u003c\/span\u003e\u003cspan\u003e by using a unique \u003c\/span\u003e\u003cspan\u003erotating disc mechanism\u003c\/span\u003e\u003cspan\u003e. Unlike standard locks, they are virtually \u003c\/span\u003e\u003cspan\u003eunpickable\u003c\/span\u003e\u003cspan\u003e, \u003c\/span\u003e\u003cspan\u003ebump-\u003cwbr\u003eproof\u003c\/wbr\u003e\u003c\/span\u003e\u003cspan\u003e, and designed to withstand harsh road conditions and outdoor environments without jamming.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e*Medeco and Abloy is available upon request for an additional fee. Please call customer support for additional information.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-tab\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e\n\u003cdiv id=\"content-frame\"\u003e\u003c\/div\u003e","brand":"Proven Locks","offers":[{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":46112301285617,"sku":"74-BLU-KD","price":265.0,"currency_code":"USD","in_stock":true},{"title":"Blue (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":46112301318385,"sku":"74-BLU-KA","price":266.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Differently","offer_id":46112301351153,"sku":"74-BLK-KD","price":265.0,"currency_code":"USD","in_stock":true},{"title":"Black (Billet 6061 Aluminum) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":46112301383921,"sku":"74-BLK-KA","price":266.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid 303 Stainless Steel) (+$100.00) \/ Keyed Differently","offer_id":46112301416689,"sku":"74-SS-KD","price":365.0,"currency_code":"USD","in_stock":true},{"title":"Stainless (Solid 303 Stainless Steel) (+$100.00) \/ Keyed Alike (All locks in shopping cart will have the same key) (+ $1.00)","offer_id":46112301449457,"sku":"74-SS-KA","price":366.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1653\/1653\/files\/74-2517-AF-MainImage-Blue.jpg?v=1746553880"}],"url":"https:\/\/www.provenlocks.com\/collections\/demco-coupler-lock.oembed","provider":"Proven Industries","version":"1.0","type":"link"}