SKU: MMM402.03
UPC: 758626402035
MPN: 402.03
The Mile Marker Hub Service Kit/O-ring for 1/2-ton interchange platforms is an essential maintenance component for owners who rely on electric winches for recovery, off-road hauling, or vehicle extraction. This replacement kit addresses the common wear point in modern winch hub assemblies—the sealing o-ring—which deteriorates over time due to thermal cycling, saltwater exposure, and repeated load cycles.
If you're running a 1/2-ton class winch and notice reduced pulling efficiency, audible grinding, or visible grease leakage near the drum hub, this kit provides the proper seal replacement without requiring a complete hub overhaul. Winch hub seals work under extreme pressure, containing high-viscosity grease while preventing water, sand, and contaminants from entering the bearing surfaces. The o-ring in this Mile Marker service kit is engineered to match OEM specifications, ensuring proper compression and durability across temperature ranges from sub-zero climates to desert heat.
Professional mechanics and serious off-road enthusiasts benefit most from keeping this o-ring kit on hand, particularly if operating in harsh conditions. The compact, precision-molded design maintains the exact profile required for the hub bore, preventing migration or pinching that could compromise seal integrity. At just 0.03 lbs, this lightweight but critical component can be installed quickly—typically within minutes—using basic hand tools and standard winch maintenance procedures.
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