SKF 19428 Differential Pinion Seal - Front

Reliable Differential Pinion Seal for GM Trucks and SUVs

The SKF 19428 Differential Pinion Seal is engineered to provide a durable and precise seal for driveline components in select Cadillac, Chevrolet, GMC, and Hummer vehicles. Designed with nitrile sealing surfaces, this pinion seal ensures effective protection against leaks and contamination in demanding driving conditions.

• Width: 0.421 inches for optimal fit and sealing
• Outside Diameter: 2.910 inches to match OEM specifications
• Shaft Diameter: 1.940 inches for accurate shaft compatibility
• Sealing Surface Type: Nitrile for resistance to oil and wear
• Compatible with multiple GM models including Silverado, Sierra, Escalade, and Hummer H2

Technical Details and Material Specifications

The SKF 19428 differential pinion seal features a nitrile sealing surface, known for its excellent resistance to petroleum-based fluids and mechanical wear. The precise dimensions—0.421 inch width, 2.910 inch outside diameter, and 1.940 inch shaft diameter—ensure a secure fit on the pinion shaft, minimizing the risk of leaks. This seal is designed to maintain the integrity of the differential assembly by preventing lubricant loss and blocking contaminants from entering the driveline system.

Compatible Vehicles and Applications

This differential pinion seal is compatible with a wide range of General Motors trucks and SUVs, including Cadillac Escalade, Chevrolet Silverado 1500 and 2500 series, GMC Sierra 1500 and 3500 series, Hummer H2, and various Suburban and Yukon models. The SKF 19428 part number is specifically suited for models such as the Avalanche 1500, Blazer, K1500, and Yukon XL 2500, ensuring proper fitment and reliable performance.

Common Issues Addressed by the SKF 19428 Seal

• Prevents differential oil leaks that can cause driveline damage
• Protects against dirt and debris entering the differential housing
• Reduces wear on pinion shaft bearings by maintaining lubrication
• Helps maintain proper differential pressure and function
• Minimizes the risk of costly repairs due to seal failure

Installation Notes and Tips

When installing the SKF 19428 differential pinion seal, ensure the pinion shaft and housing are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the nitrile sealing surface. Verify the seal dimensions match the vehicle specifications before installation. Proper lubrication of the seal lips during installation can help extend service life and prevent premature wear.

Quality Assurance and Warranty Information

SKF manufactures the 19428 differential pinion seal to meet strict quality standards, ensuring consistent performance and durability. The nitrile material and precise dimensions are tested to provide reliable sealing under typical operating conditions. SKF offers a limited warranty against manufacturing defects, providing confidence in the product’s longevity and function.