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.
Post Onsite · Brakes & Wheel End
370031A-1
In stock · ships from Knoxville
This is an oil bath wheel seal for heavy-duty truck drive axles.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
We don't publish fitment for this part yet. Rather than guess, get it confirmed against your truck in under a minute.
It uses a unitized nitrile design with a spring-loaded main lip to retain hub oil while keeping dirt, water, and debris out. Typically replaced during wheel bearing service or when a leak develops. The 370031A-1 appears to be a variant of the widely used National 370031A seal, possibly a kit or packaging variation intended for 44,000 lb drive axles.
Part Number: 370031A-1
OIL SEAL
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
