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How to Identify What Wheel Bearings and Grease Seals are Needed on Trailer Axles


I have a Cougar 5th wheel trailer and need to replace the wheel bearing and seals. How can I identify the parts required? There is some type of easy lube systems installed on the hubs.


Expert Reply:

Pulling the wheels and hubs off of your 5th wheel trailer is the best option when trying to identify what wheel bearings and seals are installed.

On the back of the wheel bearings there usually is printed a part number like # L44643. With these numbers you will be able to identify the correct wheel bearings on your trailer's axle.

Using the attached FAQ article, match the bearing numbers and you will be able to find the correct bearing & seal kit for your trailer.

In some instances the bearing numbers may be missing. In this case, refer to the attached diagram on the how to measure the inside diameter and other measurements needed to identify your bearings.

Once you have found the correct bearing and seal kit, I recommend using # L11465 Wheel bearing Grease, # L30200 Grease Gun( if you do not already have one), and # L70025 LubriMatic Bearing Packer to pack your new wheel bearings before installation.

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