Proven Locks Gooseneck Coupler Locks - $330 (Riverside)

Proven Locks Gooseneck Coupler Locks 1 thumbnail

8133 Indiana Ave

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If you have a gooseneck trailer with a round 30k coupler like the one pictured in this ad we have the highest quality coupler locking system for you!!

The coupler lock is made out of 1/4” plate steel and is built to the highest stands for strength and security.

The jam bolt lock is a combination of a stainless steel jam bolt and puck lock that is designed to take a beating. Nobody will be walking off with your 30K gooseneck coupler or trailer.

Both of these locks can be keyed alike with the spare tumbler that comes with the jam bolt lock.

Alliance Trailer Corp
8133 Indiana Ave
Riverside Ca

post id: 7933241897

posted: 2026-05-09 11:51

updated: 2026-10-26 12:39

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Proven Locks Gooseneck Coupler Locks - trailers - by owner - vehicle...

If you have a gooseneck trailer with a round 30k coupler like the one pictured in this ad we have the highest quality coupler locking system for you!! The coupler lock is made out of 1/4” plate...