Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.

National · Brakes & Wheel End
370065A
In stock · ships from Knoxville
The National 370065A is an oil-bath wheel seal designed for heavy-duty trailer axles.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 4 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Fits 22,500 lb capacity trailer axles using the Pro-Par/Eaton/Meritor TP spindle design.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 10 of 10.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It keeps lubricating oil inside the hub while blocking dirt, water, and road debris from entering and damaging the wheel bearings. This seal is typically replaced during routine bearing service or whenever a leaking hub is detected. It directly fits popular 22,500 lb trailer axle families and is equivalent to the Stemco 372-7099 two-piece seal kit.
Part Number: 370065A
WHEEL SEAL (372-7099)
Category: Brakes
Unit: ea
Dealer: Knox Trailers
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end