Autopart International 1776-520366 Differential Pinion Seal

The Autopart International 1776-520366 is a differential pinion seal designed to prevent gear oil leaks from the differential assembly. This replacement seal installs at the pinion shaft entry point where the driveshaft connects to the differential, maintaining proper lubrication levels and protecting internal components from contamination.

Key Features:

• Precision-molded rubber construction for reliable sealing performance
• Heat and oil-resistant compound withstands harsh drivetrain conditions
• Garter spring design maintains constant seal pressure on rotating shaft
• Direct replacement seal restores original equipment sealing capability
• Helps prevent costly differential damage from fluid loss

Regular inspection and replacement of worn pinion seals helps maintain differential performance and extends component life. Signs of a failing pinion seal include visible fluid leaks at the differential nose, low fluid levels, and gear oil spots under the vehicle.