How to Determine the Correct Replacement Bearings for a Boat Trailer

Question:

I was wondering if you guys can tell me what bearings I need for my boat trailer based off the vin.

asked by: Cole F

Expert Reply:

Unfortunately, we do not have any sort of database to look up parts by the vin. You would need to contact the trailer manufacturer for that, but could still be a long shot. There are a couple other ways to figure this out though.

The first would be to remove your hubs and check for the bearing numbers stamped into the bearings. If you can't find a part number, or it has worn off, you will need to take some measurements. I recommend using a digital caliper like the # PTW2993. You will be measuring the inner diameter of the bearings or the spindle where the bearings ride. Once you have this measurement you can find the correct replacement bearings.

For instance, the Replacement Trailer Hub Bearing # L44649 has an inner diameter of 1.063"

I have attached some helpful articles on wheel bearings, along with a diagram showing where to measure and find part numbers for your reference.

expert reply by: Scott S