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Stemco · Brakes & Wheel End
359-5990
In stock · ships from Knoxville
This is a red rubber vent plug designed to fit the vent hole in oil-filled hub caps on heavy-duty trucks and trailers.
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Verified fitment for 3 applications
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All confirmed applications for this part number.
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Other applications
Fits oil-lubricated hub caps with a 1-1/8 inch vent hole. Verify cap model and hole size before ordering.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 4 of 4.
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It allows the wheel-end to breathe, releasing pressure that builds up from heat during operation, which helps prevent oil from being forced past seals. A failing or missing plug can lead to pressure buildup, seal damage, and lubricant contamination. It is replaced during routine hub service or whenever the old plug is damaged or lost.
Part Number: 359-5990
OIL PLUG FOR HUB CAP
Unit: ea
Dealer: KP Services Crossville
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end