
Image is for illustration purposes only. Actual part may vary.
330-3077
This is an O-ring gasket designed for heavy-duty truck hub caps, specifically the Stemco Propar cap style. 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.
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 Number: 330-3077
OIL BATH HUBCAP GASKET
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end