Rear Differential Pinion Seal for 1999-2015 Chevrolet Silverado 1500 & More - SKF 21285

Help keep differential lubricant in and dirt and water out with the SKF differential pinion seal, part number 21285. This rear differential pinion seal is a direct-fit replacement for many vehicles, including the 1999-2015 Chevrolet Silverado 1500; see the "Vehicles it fits" section for the full list and engine details.

The pinion seal closes off the opening where the pinion shaft exits the rear differential housing. The seal body stays stationary while its lip contacts the rotating pinion yoke. This helps hold fluid in the housing and keep outside contaminants out.

• Dirt and water protection: designed to deliver superior protection against dirt and water.
• Steel garter spring: the garter spring uses cold drawn steel wire for superior fluid retention.
• Rigid metal case: the body is formed from deep drawn sheet steel to create a rigid, stress-resistant case.
• Correct fit: built with a high-quality, tested design and materials for correct fit.

SKF invented the first integrated shaft seal in 1928 and has continued to pioneer new seal designs and bonding techniques since then. Each seal is made to a specific design using premium materials selected for its application and environment.

Signs this part may need replacing: fluid seeping around the pinion yoke, oily residue on the differential housing, or a dropping differential fluid level. Diagnose the source of any leak before replacing parts.

Interchange: 710506.1
7105061 · 710506 · 4133119100 · 26064028 · NS710506 · 27SS3119