SKF 21696A Differential Pinion Seal - Rear

Differential Pinion Seal Overview

The SKF 21696A differential pinion seal is built for rear differential sealing applications where lubricant retention and contamination control are critical. It uses a polyacrylate sealing surface and application-specific dimensions to support a precise seal interface.

Compatible With Chevrolet Caprice, Chevrolet SS, Audi Q7, Volkswagen Touareg, and Pontiac G8 rear differential applications. This part cross-references Monroe Shocks & Struts (e.g., 0AB525596, 92191954) for the same application.

Key Features

• Polyacrylate sealing surface for durable contact at the shaft interface.
• Application-specific dimensions: 0.315 width, 3.158 outside diameter, and 2.165 shaft diameter.
• Rear differential pinion seal design for lubricant control and contamination resistance.
• SKF engineering backed by more than a century of seal development.

Detailed Description

SKF 21696A is a differential pinion seal engineered for rear axle sealing service on select Chevrolet, Audi, Volkswagen, and Pontiac applications. The seal is designed around the shaft and housing dimensions listed above, helping maintain the differential’s internal lubricant barrier under normal operating conditions. SKF’s long history in seal design and bonded sealing technology informs the construction of this replacement part.

Fits 2011-2017 Chevrolet Caprice, Rear. Fits 2014-2017 Chevrolet SS, Rear. Fits 2007-2010 Audi Q7, Rear. Fits 2004-2010 Volkswagen Touareg, Rear. Fits 2008-2009 Pontiac G8, Rear.

What It Is Used For

• Stopping gear oil seepage at the differential pinion area.
• Reducing contamination entry into the rear differential housing.
• Restoring sealing performance when the original seal is worn or damaged.
• Addressing leaks that can lead to low lubricant levels and driveline noise.

Installation Notes and Tips

Verify shaft diameter, outside diameter, and seal width before installation. Inspect the pinion surface and surrounding housing for wear, scoring, or contamination that could affect sealing performance. Clean the sealing area thoroughly and confirm the replacement seal is seated squarely during installation.

Quality Assurance

SKF manufactures seals to specific designs using premium materials and quality standards intended to support long service life and safe operation. The brand’s seal development history includes the first integrated shaft seal, introduced in 1928.