How to Determine Correct Sidewinder Replacement Pin Box
Updated 07/21/2020 | Published 07/18/2020
Question:
I have a camper that is a 2012 Coachmen by Forest River Chaparral Lite Fifth Wheel Series M-279 BHS. I just purchased an 2020 ram Rebel that has a 57inch bed and I am having a hard time finding the correct sidewinder. Also I have a BandW fifth wheel hitch already installed in my truck but I think I have to have a different wedge? Any help you give would be appreciated.
asked by: Marty B
Expert Reply:
To find the correct Sidewinder what you will need to know is the manufacturer and model number of the pin box on your fifth wheel and match that with the correct replacement, however, the correct part is likely the Sidewinder # RP34FR.
This will replace Lippert 0719, 1621 and 1621HD, Fabex 663 and 665, M&M 663 and 665, along with Lippert 1716, 1116, and 0115 pin boxes.
The Lippert 1716, 1116, and 0115 pin boxes do require the Spacer Kit # RP97FR.
The pin box number should be on a sticker or placard somewhere on the pin box itself, or you can call the trailer manufacturer with your VIN. If that information is not available you are going to need to take some measurements to determine exactly what you have. I have added a link to a help article called "Measuring to Determine the Correct Replacement Pin Box for a 5th-Wheel Trailer" which has the exact measurements you need to take, and this will allow you to find out what pin box you have.
If you let me know your pin box model number I can find the right one for you as well.
In regards to the wedge, with this Sidewinder the correct wedge for a B&W 5th wheel hitch is the Sidewinder Wedge Kit # RP74FR
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