QC Pinion Seal 5/16

The QC Pinion Seal 5/16 from Allstar Performance is a precision-engineered differential seal designed for high-performance automotive and tactical vehicle maintenance. This critical component prevents gear oil leakage at the pinion shaft, maintaining hydraulic integrity under demanding operational conditions. Built for those who depend on vehicle reliability in field operations, law enforcement, and military applications, the pinion seal ensures your drivetrain stays sealed against contamination and fluid loss during extended missions or training exercises.

The seal features a 5/16-inch inner diameter and is engineered to fit standard Quick Change (QC) pinion configurations, providing a dynamic barrier between the differential housing and the external environment. Constructed from durable elastomer materials with precision metal reinforcement, this seal withstands pressure cycling, temperature fluctuations, and the vibration inherent to rough terrain operations.

Maintenance professionals, armored vehicle operators, and performance mechanics benefit from the QC Pinion Seal 5/16 when servicing differentials on duty vehicles, patrol trucks, and specialty tactical platforms. Installation requires basic differential knowledge and standard tools, making it accessible for a wide range of users.