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Stemco · Brakes & Wheel End
340-4075
In stock · ships from Knoxville
This is a cast aluminum spin-on hub cap for heavy-duty truck and trailer wheel ends.
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Fits hubs with a 6.25" bolt circle diameter, 8 bolts, flange inner diameter 5.75", and overall depth approximately 2.31". Verify compatibility with Pro-Par hub assemblies 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 replaces the older Pro-Par style and protects the wheel bearing lubrication and seals from dirt and moisture. The spin-on design allows for easy installation and removal, and the integrated red plug vents pressure to prevent seal damage. A side fill plug is provided for adding or checking oil. Typically replaced when the hub cap is damaged, corroded, or if the gasket or window fails, causing oil leaks.
Part Number: 340-4075
ALUMN SPIN ON PROPAR HUBCAP
Unit: ea
Dealer: Post Onsite
Compatibility, alternatives, and more
Parts commonly needed alongside brakes & wheel end
