Timken 2043 Differential Pinion Seal - Rear or Rear Outer

Reliable Differential Pinion Seal for GM Vehicles

The Timken 2043 Differential Pinion Seal is engineered to provide a durable and precise seal for driveline applications. Designed with S-nitrile material, this seal ensures effective protection against leaks and contamination in various Buick, Chevrolet, GMC, and Pontiac models.

• Constructed from high-quality S-nitrile for enhanced resistance to oil and heat
• Outside diameter measures 2.768 inches (70.28 mm) for accurate fitment
• Shaft diameter of 1.940 inches (49.28 mm) matches OEM specifications
• Housing bore dimension of 2.762 inches (70.28 mm) ensures proper installation
• Width of 0.500 inches (12.70 mm) supports secure sealing
• Clockwise (CW) helix type design for optimal sealing performance

Precision Engineering and Material Details

The Timken 2043 differential pinion seal is manufactured using S-nitrile, a synthetic rubber known for its excellent resistance to petroleum-based fluids and high temperatures. This material choice helps maintain seal integrity under demanding operating conditions. The seal’s dimensions, including a 2.768-inch outside diameter and a 1.940-inch shaft diameter, are designed to match the housing bore and shaft sizes found in many GM vehicles, ensuring a tight and reliable fit. The 0.500-inch width and clockwise helix type contribute to effective sealing and reduced leakage risk.

Compatible GM Makes and Models

This differential pinion seal is compatible with a wide range of General Motors vehicles, including Buick, Cadillac, Chevrolet, GMC, Oldsmobile, and Pontiac. Specific models supported include the Chevrolet Blazer, C10, Camaro, Caprice, El Camino, and Silverado series, as well as Buick LeSabre, Century, and Riviera, among others. The Timken 2043 is suitable for driveline and axle applications in these vehicles, providing a reliable seal for differential pinion shafts.

Common Applications and Problem Solving

• Prevents oil leaks from the differential pinion shaft
• Protects driveline components from dirt and debris contamination
• Reduces wear caused by fluid loss and external contaminants
• Maintains proper lubrication within the differential housing
• Helps avoid costly repairs related to seal failure and axle damage

Installation Notes and Tips

When installing the Timken 2043 differential pinion seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into place without distortion. Verify the helix direction matches the original seal orientation (clockwise). Lubricate the seal lip with clean gear oil before installation to reduce initial wear. Proper installation will help maintain seal performance and extend service life.

Quality Assurance and Warranty

Timken manufactures the 2043 differential pinion seal to meet strict quality standards, ensuring consistent dimensions and material properties. The use of S-nitrile material provides durability and resistance to common automotive fluids. While specific warranty details may vary, Timken products typically come with a limited warranty against manufacturing defects, supporting reliability in driveline sealing applications.