Dorman 926-817 Differential Gasket - Front

Reliable Differential Gasket for GM Trucks and SUVs

The Dorman 926-817 differential gasket is engineered to provide a secure seal for driveline components in select Cadillac, Chevrolet, and GMC vehicles. Designed with durable aramid fibers and nitrile materials, this gasket ensures long-lasting performance and leak prevention in demanding conditions.

• Constructed from aramid fibers and nitrile for enhanced durability and sealing
• Includes two gaskets per package for comprehensive replacement needs
• Thickness of 1 mm for precise fit and reliable sealing
• Inside diameters of 222.4 mm and 97.2 mm to match specific differential cover dimensions
• Compatible with 5 or 12 cover bolt configurations and 10.5 mm mounting hole diameter

Durable Materials and Precise Dimensions

The Dorman 926-817 differential gasket combines aramid fibers with nitrile rubber to resist heat, oil, and wear commonly encountered in driveline applications. The gasket thickness of 1 mm ensures a tight seal without compromising the fit. With inside diameters of 222.4 mm and 97.2 mm, this gasket matches the differential cover specifications for a range of GM vehicles. It accommodates both 5 and 12 bolt cover configurations, making it versatile for various models.

Compatible Vehicles and Applications

This differential gasket is compatible with multiple GM trucks and SUVs, including Cadillac Escalade, Escalade ESV, and Escalade EXT; Chevrolet Avalanche, Silverado 1500, Silverado 1500 LD, Suburban 1500, and Tahoe; as well as GMC Sierra, Sierra 1500, Sierra 1500 Limited, Yukon, Yukon XL, and Yukon XL 1500. The Dorman 926-817 gasket is designed to maintain proper sealing in the differential assembly, preventing leaks and contamination.

• Prevents differential fluid leaks and contamination
• Eliminates noise caused by improper sealing
• Helps maintain optimal differential performance
• Prevents damage from dirt and debris ingress
• Supports proper torque retention on differential cover bolts

Installation Notes and Tips

Before installing the Dorman 926-817 differential gasket, clean the differential cover and housing mating surfaces thoroughly to remove old gasket material and debris. Ensure the gasket aligns correctly with the bolt holes and mounting surfaces. Use the appropriate torque specifications for the 5 or 12 cover bolts to avoid over-tightening or under-tightening, which can cause leaks or gasket damage. Replacement of both gaskets included in the package is recommended when servicing the differential.

Quality Assurance and Warranty

Dorman manufactures the 926-817 differential gasket to meet or exceed OEM standards for fit, form, and function. The use of aramid fibers and nitrile materials ensures durability under typical operating conditions. This product is backed by Dorman's quality assurance processes, providing confidence in its reliability for Cadillac, Chevrolet, and GMC driveline repairs.