FAG SS6359 Differential Pinion Seal - Rear

Rear Differential Pinion Seal for Toyota Tundra

FAG SS6359 is a rear differential pinion seal built for the 2007-2020 Toyota Tundra with a 10.50" ring gear. It is designed with a rubber seal type, spring, and auxiliary lip to help retain lubricant and keep contamination out of the differential assembly.

For Toyota Tundra rear differential service, SS6359 provides the dimensional accuracy needed for a proper seal at the pinion area. The seal uses polyacrylate sealing material and is specified to match the application requirements of the vehicle.

Key Features

• Rear differential pinion seal for 2007-2020 Toyota Tundra
• Seal type: rubber, spring, auxiliary lip
• Sealing material: polyacrylate
• Bore diameter: 3.425 in. / 86.995 mm
• Seal outside diameter: 3.433 in. / 87.198 mm
• Seal width: 2.047 in. / 51.994 mm
• Designed for 10.50" ring gear applications
• FAG part number SS6359

Detailed Description

FAG SS6359 is engineered for rear differential pinion sealing on the Toyota Tundra across model years 2007 through 2020. The seal is built to the dimensional requirements of the application, with a 3.425-inch bore diameter, 3.433-inch outside diameter, and 2.047-inch width. Its rubber construction, spring element, and auxiliary lip are used to support sealing performance at the pinion interface, while the polyacrylate sealing material is selected for the demands of driveline service.

This part cross-references Gates 19802 for the same application. If you are servicing a Toyota Tundra rear differential, SS6359 is the FAG reference to verify against the original seal dimensions and vehicle configuration.

What This Part Helps Address

• Gear oil leakage at the rear differential pinion area
• Contamination from dirt, dust, and moisture entering the seal area
• Loss of lubricant from the differential housing
• Wear related to an aging or damaged pinion seal
• Service replacement for a leaking Toyota Tundra rear differential seal

Installation Notes and Tips

Confirm the rear axle configuration and 10.50" ring gear specification before ordering. Compare the old seal’s dimensions and sealing style to SS6359 to ensure correct application match. Clean the sealing surface thoroughly during service and inspect the pinion area for wear, scoring, or contamination that could affect seal life. For Toyota Tundra rear differential repairs, accurate installation and proper surface preparation are important for maintaining a reliable seal.

Quality Assurance

FAG designs seals to meet vehicle manufacturer specifications and works with suppliers to maintain its quality standards. SS6359 is built for the demands of driveline sealing in the Toyota Tundra rear differential application.