Replacement King Pin/Pin Box For A 2022 Keystone Fuzion 373

Updated 10/02/2023 | Published 09/30/2023

Question:

We have a 2022 fusion 373 we are looking for a king pin 7.5 x 2x37”long 18000 or 21000 lb can you help me? With a toy hualer

asked by: Albert

Expert Reply:

We offer four different options for replacement king pins with the only difference being the thickness of the bolster plate. I've attached a link to those options below. If you were instead wanting to replace the entire pin box then you'll first need to figure out the bolt pattern. There should be a sticker somewhere on the pin box that lists the manufacturer info (example pictured below). With this I can look up the bolt pattern, if not you'll have to use the attached guide below to measure for the bolt pattern. If your pin box says "Rhino Box" on it that will also tell us the bolt pattern.

For example, the Trailair Air Ride 5th Wheel Pin Box # LC179879 you were looking at can fit a 0719 bolt pattern, which isn't too common any more so it's likely not going to be a fit for your 2022 Keystone Fuzion 373.

expert reply by: Kevin C