FAG SS3821 Manual Transmission Seal - Rear

Overview of FAG SS3821 Manual Transmission Seal

The FAG SS3821 manual transmission seal is engineered for reliable sealing performance in select GM vehicles. Designed with durable nitrile sealing material and a metal spring auxiliary lip, this seal ensures effective protection against leaks in manual transmissions of Cadillac, Chevrolet, and GMC models.

• Seal Type: Metal with spring and auxiliary lip for enhanced sealing
• Sealing Material: High-quality nitrile for resistance to oil and wear
• Bore Diameter: 3.251 inches (82.575 mm)
• Seal Outside Diameter: 3.256 inches (82.702 mm)
• Seal Width: 2.25 inches (9.525 mm)

Technical Details and Specifications

The SS3821 manual transmission seal features a robust metal construction combined with a spring-loaded auxiliary lip to maintain consistent contact and prevent fluid leakage. The nitrile sealing material offers excellent resistance to transmission fluids and temperature variations, making it suitable for demanding automotive environments. With precise bore and outside diameters of approximately 3.25 inches (82.5 mm) and a width of 2.25 inches (9.5 mm), this seal fits tightly within the transmission housing to maintain optimal sealing integrity.

Compatible Vehicles and Applications

This manual transmission seal is compatible with a range of GM vehicles, including Cadillac, Chevrolet, and GMC models such as Avalanche, Avalanche 1500, Avalanche 2500, Blazer, Escalade, Jimmy, K1500, K1500 Suburban, S10, Sierra 1500, Sierra 1500 HD, Silverado 1500, Silverado 1500 HD, Sonoma, Suburban 1500, Suburban 2500, Tahoe, Yukon, and Yukon XL 1500. The part number SS3821 is specifically designed to meet the sealing requirements of these manual transmissions.

Common Issues Addressed by the SS3821 Seal

• Prevents manual transmission fluid leaks that can cause shifting problems
• Reduces contamination ingress to protect transmission components
• Maintains pressure integrity within the transmission system
• Minimizes wear on transmission shafts by providing a secure seal
• Helps avoid costly transmission repairs due to seal failure

Installation Notes and Tips

Proper installation of the FAG SS3821 seal is critical for optimal performance. Ensure the transmission housing bore is clean and free of debris before installation. Use appropriate tools to press the seal evenly into place without damaging the sealing lip or metal casing. Verify correct orientation of the auxiliary lip to face the fluid side. It is recommended to inspect related transmission components during installation for wear or damage.

Quality Assurance and Warranty

FAG manufactures the SS3821 manual transmission seal to meet stringent quality standards, ensuring durability and reliable sealing performance. The use of nitrile sealing material and metal spring design reflects FAG's commitment to engineering components that withstand automotive operating conditions. Warranty coverage details should be confirmed with the product documentation or supplier.