Locating Reese Sidewinder Pin Box for Aerolite 5th Wheel Trailer

Question:

2000 aerolite 26 ft 5th wheel What one will fit trailer

asked by: Graham S

Expert Reply:

Reese Sidewinder pin boxes are designed to replace the factory pin box model on your trailer but trailer manufacturers don't often provide this type of information. The best method will be to try and locate the number that should be on the pin box itself or take a few measurements on the unit. I have attached an article that explains what measurements you will need to take. Different pin box models will have different bolt hole spacing, so these are the particular measurements that will determine a fit for a replacement.

You might also be able to contact the trailer manufacturer (Dutchmen) with your VIN and they should be able to provide the pin box model to you.

For example, the Reese Sidewinder # RP34FR that you were looking at is designed to replace the Fabex 663 and 665, the Lippert 0719, 1621 and 1621HD, along with the M&M 663 and 665 pin boxes. If you have one of these models on your trailer, this unit will work perfectly. Otherwise, if you are able to provide me with the dimensions you took based on the attached article, or able to locate the model number, I will be happy to recommend a different option or confirm if this will work.

expert reply by: Chris R