How to Select a Trailer Hitch
Classes, receiver sizes, and matching hitch ratings to the trailer.
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Some couplers include a grease fitting so you can service the socket without digging out old grease by hand. Use the right grease gun tip and stop when you feel resistance.

Wipe the fitting clean. Pump slowly until fresh grease appears or the instructions say stop. Clean the overflow so it does not collect highway grit.
The passage may be clogged or the fitting damaged. Do not explode the socket with pressure. Service or replace the coupler hardware instead.
Confirm ratings and fit notes on each product page before you order.




Official clips from @curtmfg. If an embed stalls, use the YouTube link under the video.
Classes, receiver sizes, and matching hitch ratings to the trailer.
Watch on YouTube