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Recommended Coupler Lock For A 4-1/2" Wide Flat Lip Coupler  


I have a 2008 Jayco Jayfeather 25F that has a 2-5/16 ball with a flat lip around it that is 4-1/2 wide. Can you recommend a tongue lock that is wide enough to slide over a 4-1/2 lip?


Expert Reply:

We do have the etrailer coupler lock # e98895 which is made to fit a flat lip coupler up to 4-1/2" wide. This may be a very tight fit if you are right at 4-1/2".

If you want to avoid any potential fitment issues, I recommend the Master Lock Trailer Coupler Lock # ML377KA. The design allows this lock to fit virtually any coupler with a flat lip, regardless of width. As you can see from the picture below, the lock does not "surround" the entire coupler, so it will undoubtedly work for you.

We also made a video reviewing this lock which I have linked below.

expert reply by:
Jesse M
Master Lock Coupler Lock Open/Closed
Master Lock Coupler Lock Open/Closed
(click to enlarge)

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