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Stemco · Brakes & Wheel End
330-3077
In stock · ships from Knoxville
This is an O-ring gasket designed for heavy-duty truck hub caps, specifically the Stemco Propar cap style.
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Verified fitment for 2 applications
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All confirmed applications for this part number.
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Fits Stemco Propar cap and is the specified gasket (330-3077) for the Stemco 348-4075 Sentinel Oil Hub Cap assembly. Also referenced in Stemco hub cap part number 340-4975.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 2 of 2.
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Its job is to seal the mating surface between the hub cap and the hub, preventing oil leaks from the wheel-end oil bath system. You would replace this O-ring anytime you remove the hub cap for bearing inspection or seal replacement, or if you notice oil weeping from the cap flange, as a hardened or damaged gasket will cause fluid loss and potential bearing failure.
Part Number: 330-3077
OIL BATH HUBCAP GASKET
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end