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What Thread Size Grease Zerk Does Reese Goose Box Coupler Adapter # RP94720 Use?


I broke the stock grease zerk at the base. What is the correct replacement size? It broke off and the threaded nipple is still in the hole so I cant get a size until I remove the broken piece. Thank you.


Expert Reply:

I reached out to my contact at Reese and the grease zerk on the bottom of your Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 and 0719 - 20,000 lbs # RP94720 has a thread size of 6mmx 1.0.

Once you get the broken zerk out you will be able to easily replace it, however we do not currently offer this size of replacement grease zerk so you will need to pick one up from a local auto parts store as they should have them in stock.

I included a video review of the # RP94720 for you to take a look at.

expert reply by:
Samuel C

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