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National · Brakes & Wheel End
370003A
In stock · ships from Knoxville
This is a rear wheel oil bath seal designed for medium- and heavy-duty trucks.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 22 applications
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All confirmed applications for this part number.
Capacity
Chevrolet
Ford
Freightliner
GMC
Hino
Isuzu
Capacity
Chevrolet
Ford
Freightliner
GMC
Hino
Isuzu
Primarily used as the rear inner wheel seal on medium-duty trucks with oil-bath hubs. Always verify position and dimensions before ordering.
Part data verified against 5 catalog sources
Different year, make, or config? Get a confirmation against your truck in under a minute.
It keeps gear oil inside the hub while preventing dirt, water, and debris from entering, protecting the wheel bearings. The seal features a nitrile rubber element with a spring-loaded main lip and patented SURE-LOCK® ribs that grip the bore and shaft to prevent leaks. It is typically replaced during wheel bearing service or whenever an oil leak is observed around the hub.
Part Number: 370003A
SEAL 370003A
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
