Rear Differential Pinion Seal for 2014-2020 Chevrolet Silverado 1500 & More - SKF 21395A

Keep differential lubricant in and dirt and water out with the SKF differential pinion seal 21395A, a rear differential pinion seal for Chevrolet, GMC and Cadillac trucks, SUVs and vans. It is a direct-fit replacement for many vehicles, among them the 2014-2020 Chevrolet Silverado 1500, 2014-2020 GMC Sierra 1500 and 2014-2020 Chevrolet Tahoe.

The pinion seal sits at the front of the rear differential housing, where the pinion shaft exits toward the driveshaft. The seal body stays stationary while its lip rides on the rotating pinion. It helps hold lubricant inside the differential and keep road contaminants out.

• Protection against dirt and water: The seal is built to give superior protection against dirt and water.
• Rigid metal case: The body is formed from deep drawn sheet steel, which creates a rigid, stress resistant metal case.
• Garter spring: The garter spring is made from cold drawn steel wire for superior fluid retention.
• Tested for correct fit: The seal is built with a high-quality, tested design and materials for a correct fit.

SKF invented the first integrated shaft seal in 1928 and has kept developing new seal designs and bonding techniques since then. Its seals are made to specific designs using premium materials, chosen to give each seal the right properties for its application and environment.

Signs this seal may need replacing include:

• Lubricant seeping or dripping at the front of the rear differential
• A wet, grimy area around the pinion
• A dropping differential fluid level

See the "Vehicles it fits" section for engine details and the complete application list.

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