Looking For Simulated King Pin Or Rubber Dummy King Pin For 5th Wheel Hitch Maintenance

Updated 09/05/2025 | Published 08/31/2025

Question:

I need a simulated king pin .. or dummy king pin .. So I can do the maintenance on my Curt A16. I cant get to the zerk fittings unless the jaws are closed. I cannot find one on your website, but, in your videos you use one all the time. Thanks.

asked by: Gus G

Expert Reply:

Hey Gus, thanks for reaching out. We actually get this question more often than you would think. I am familiar with the dummy king pin you mentioned. It is still floating around our shop here somewhere and we only have one. I wish I had a better answer for you, but I have no idea where it came from. I even went and talked to several of my associates who have been around etrailer forever and even they don't know. It is possible one of our vendors brought it as a sample. It was never a product we carried or sold here. Even looking around elsewhere online I am not seeing that any comparable product exists.

As far as a solution for you, the only thing I can think of would be to take a forged king pin plate like part # 337KP20031. Maybe take one of those and modify the top plate to allow access to the grease zerks.

expert reply by: Jesse M

Buyers Products 2" Forged SAE Trailer King Pin
(click to enlarge)

Gus G.

9/5/2025

Thanks. I was also thinking of getting one of those. I don't think I would need to modify the top plate as the zerks are on the front of the jaws. But .. which one of these would fit a CURT A16 ??? Thanks for the answer. Gus

Jesse M.

9/5/2025

@GusG The # 337KP20031 I mentioned above will work with your Curt A16, or any other 5th wheel hitch. The kingpins are a standard size. Any of the weld-on kingpins we offer would work, I just recommended the one with the thinnest plate since I was thinking you might need to cut it.

Gus

9/5/2025

@JesseM Got'cha .. Okay .. Thanks .. as soon as I get back - I'll get up on the site and order it .. Thanks, Jesse !!! Gus