Yoke Seal - Viton

The Yoke Seal - Viton is a precision-engineered pinion seal designed for quick-change differential yoke assemblies in light to medium-duty drivetrains. This 3/4 inch wide seal combines durable Viton elastomer with a steel backing ring to prevent gear oil leakage at the pinion shaft interface. Maintenance technicians, fleet operators, and off-road enthusiasts rely on quality yoke seals to keep differential fluid contained and prevent costly contamination or loss of lubrication during demanding service conditions.

Viton (fluoroelastomer) material offers superior heat and chemical resistance compared to standard rubber, making it ideal for high-performance and heavy-use applications where differential temperatures can exceed 200°F. The seal's steel case provides structural support and ensures reliable radial and axial retention against the pinion shaft without tearing or rolling under pressure. The quick-change design allows straightforward removal and installation using basic hand tools, minimizing downtime during seal replacement or yoke service intervals on virtually any passenger vehicle or light truck platform.

This yoke seal is essential for anyone rebuilding a differential, performing scheduled maintenance, or addressing an active leak from the pinion shaft. OEM replacements and performance rebuilds both benefit from a quality Viton seal that resists oil degradation and maintains pressure integrity over extended intervals. Installation is straightforward on most standard pinion yokes with 3/4 inch seal cavities—simply clean the shaft and cavity, apply light differential oil to the seal lip, and slide the assembly into place with gentle pressure until fully seated.