O-Ring Hub 2-7/8in Pro Elim

The O-Ring Hub 2-7/8in Pro Elim from Winters is a precision elastomer seal engineered for high-performance engine and transmission applications where reliable fluid containment is critical. This component serves as the backbone of many cooling system modifications and performance builds, designed specifically for builders and mechanics who demand durability when standard seals fall short. Whether you're assembling a custom water pump hub, rebuilding a racing engine, or upgrading cooling system architecture, this o-ring eliminates common seal failures that plague stock configurations.

Constructed from premium black rubber compound, the O-Ring Hub 2-7/8in Pro Elim features a 4-inch inner diameter (ID) and 4.125-inch outer diameter (OD), with a 2-7/8-inch hub specification that integrates seamlessly into Winters pump assemblies and compatible aftermarket cooling systems. The o-ring's cross-section and material composition provide superior resistance to coolant degradation, thermal cycling, and pressure spikes common in turbocharged or supercharged engines. This precision-molded design eliminates the leakage and warranty failures associated with inferior or generic seals, maintaining pressure integrity across wide temperature ranges.

Professional engine builders, transmission tuners, and DIY performance enthusiasts rely on the O-Ring Hub 2-7/8in Pro Elim for applications involving Winters brand hubs and OEM-equivalent cooling system replacements. Installation requires no special tools—simply seat the o-ring into the hub groove and verify proper compression before bolting assemblies together. This component is essential for any cooling system rebuild where eliminating leaks and ensuring long-term reliability justifies the investment in quality sealing.