How To Find Correct Reese Goose Box 5th-Wheel-to-Gooseneck Adapter for 5th Wheel Trailer

Published 10/25/2022

Question:

I have 2020 Chevy Silverado 2500 crew cab regular bed with OEM goose ball/5th pucs - Will a #1621 or #1716 fit on a 2021 to 2023 Cougar 24 rds or Reflection 260 rd 5th wheel trailer? - And will it provide enough clearance to make 90 degree turns so I dont have to purchase an auto slider hitch?

asked by: Kenny

Expert Reply:

In order to choose the correct Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter for a trailer you need to know the pin box pattern. The pin box pattern is indirectly listed on the white sticker attached to the pin box brackets on the trailer. The sticker will contain a serial or product number you can reach out to the frame manufacturer with to determine the pin box pattern. The most common are Lippert 1621, 1116, and 1716. The Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter part # RP85FR fits the 1621 and 1716 and 1116 when used with the Spacer Kit for Reese 20K Sidewinder 5th Wheel King Pin part #

In regards to turning clearance, you'll need to measure if you have a short bed.

expert reply by: Conner L