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Proper Lubrication of Curt A20 5th Wheel Trailer Hitch  


Just purchased a A20 w/R20 and the Ram OEM roller adapter, in the manuel it states to use Black Graphite Grease for the fittings, is there another name for it? And is there any lubricant needed on the lower bearing shaft?


Helpful Expert Reply:

For the Curt A20 5th Wheel Trailer Hitch # C16541, Curt does recommend that black graphite grease be used for the jaw before each individual use and every 1,000 miles thereafter. Black graphite grease can usually be obtained at a local auto parts or hardware store and will probably just be labeled as "graphite grease". If you do not already have a manual grease gun, you can use # L30200.

You can use the grease fitting that is centered in the cast base plate to grease the lower bearing assembly. The fitting is visible while looking down through the jaws in their locked position. Black graphite grease is also recommended for this application.

expert reply by:
Chris R

Doyle E.


I need the spring that’s by the jaws under the head. Also I need the spring that’s on the slide bar Handle.

Les D.


For the Curt Q20 5th Wheel Trailer Hitch # C16536, Curt does not sell just those springs individually or part of a sub-assembly. To get those springs from Curt, you would have to buy the entire hitch again. I am sorry that I don't have a solution for you.



Black graphite grease or graphite grease is recommended for the lower bearing assembly and on the left and right undersides of the head of the Curt Q20 5th wheel hitch. I've tried the dealer that installed the hitch, Merle's Automotive, AutoZone, O'Rielly Auto parts and even looked on Amazon. No one knows what I'm talking about and I'm unable to find graphite grease, except for the graphite grease that you put in door locks. Is there a suitable substitute for graphite grease that comes in a tube so that I can grease my zerk fitting?

Etrailer Expert

Chris R.


Absolutely. You can use a standard multi-purpose grease for this application. Something like the LubriMatic Grease Gun # L30132 would work really well to lubricate the hitch.

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