Recommended Replacement 5th Wheel Pin Box

Question:

I need to extend my pin box on my fifth wheel. the pin box is about 8 1/2 inch wide center to center on the bolts is 7 1/8 it has a 5 bolts on each side . what pin box will work to extend my pin box.

asked by: Eric S

Expert Reply:

The best way to select a replacement 5th wheel pin box, such as a Reese Sidewinder that provides better turning clearance for short bed trucks, is to use the original pin box manufacturer's part number. This is usually on a sticker on the driver's side. The Trailair Flex Air pin box # LC328492 that you referenced is a direct replacement for the Lippert 1621 pin box as shown on the linked page.

You can use the linked article on Sidewinders to match your current pin box brand and part number; this will then tell you the replacement Sidewinder that will bolt up in its place.

expert reply by: Adam R