5th Airborne Premium 5th Wheel Air Ride w/ Sidewinder and Turret for Grand Designs Solitude  

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Expert Reply:

The 5th Airborne Premium 5th Wheel Air Ride King Pin w/ Sidewinder and Turret, # ST400-5AS16K connects to standard 5th-wheel trailer hitches. This particular model is designed to replace Leland 7910, 7920 and 7921 and Dexter 221-0037 pin boxes. I suggest you verify what current pin box is on your Grand Designs Solitude so as to find best replacement option. The manufacturer and model number of the pin box is usually printed on a sticker or stamped into a plate or directly into the metal of the pin box.

If you can't find that, the manufacturer of your 5th wheel should be able to tell you which pin box you have if you provide them with the VIN.

If you can't reach the manufacturer or they can't help for some reason, take a look at the FAQ article I've linked below. The article shows you how to measure the spacing of the bolt holes in your current pin box in order to identify its manufacturer and model number.

From information available to me online, many of the Grand Design Solitude 5th wheels use a Lippert 1621 pin box. If you do have a Lippert 1621, the 5th Airborne Premium 5th Wheel Air Ride King Pin w/ Sidewinder and Turret, # RP61422 is the part number you are needing.

expert reply by: Michael R

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