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How to Use a Reese 5th Wheel Hitch on a 2018 GMC Sierra 3500 with Factory Puck System


Is there a product available to adapt my current Reese 16k 5th wheel hitch to my new 2018 GMC 3500 long bed puck factory system?


Expert Reply:

Yes, in order to use your Reese 16K 5th Wheel Hitch part # RP30047 on your 2018 GMC Sierra 3500 8' bed with the factory puck system you will want to use the Reese 5th Wheel Rail Adapter for Chevy/GMC OEM 5th Wheel Towing Prep Package part # RP49FR.

This adapter will serve as a connection point for any 5th wheel hitch that uses industry standard rails such as the above Reese 16K. It has a 27,000 lb capacity. The plate weighs around 95 lbs.

If you are looking for a new 5th wheel hitch that will attach directly to the factory pucks on your Sierra, I recommend the Curt A16 5th Wheel Trailer Hitch part # C16520-16025. The greatest enhancement you will gain using the Curt A16 over the Reese is the ability to just drop the Curt hitch right into the pucks with no adapters needed.

I have attached a review video of the Curt A16 and sample photo of the adapter with a similar hitch for you as well.

click to enlarge
expert reply by:
Conner L

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