FAG SS4978 Manual Transmission Seal - Rear

Overview of FAG SS4978 Manual Transmission Seal

The FAG SS4978 manual transmission seal is engineered for reliable sealing performance in select Chevrolet, GMC, and Isuzu vehicles. Designed with durable materials and precise dimensions, this seal helps maintain transmission integrity and prevent fluid leaks.

• Seal Type: Metal with spring and auxiliary lip for enhanced sealing
• Sealing Material: Polyacrylate for resistance to transmission fluids
• Bore Diameter: 1.937 inches (49.2 mm)
• Seal Outside Diameter: 1.944 inches (49.378 mm)
• Seal Width: 1.496 inches (8.992 mm)

Technical Details and Specifications

The SS4978 manual transmission seal features a metal construction with an integrated spring and auxiliary lip, providing a secure fit and effective sealing against contaminants and fluid leaks. The polyacrylate sealing material offers chemical resistance suitable for manual transmission environments. With a bore diameter of 1.937 inches and an outside diameter of 1.944 inches, this seal fits precisely within the transmission housing. The seal width of 1.496 inches ensures proper coverage and durability under operating conditions.

Compatible Vehicles and Applications

This manual transmission seal is compatible with various Chevrolet, GMC, and Isuzu models, including the Chevrolet Impulse, Jimmy, S10, and S15, GMC Jimmy and Pickup, and Isuzu LUV. The part number SS4978 is specifically designed to meet the sealing requirements of these vehicles' manual transmissions, helping to maintain optimal performance and prevent leaks.

• Prevents manual transmission fluid leaks
• Protects transmission internals from dirt and debris
• Maintains proper lubrication within the transmission
• Reduces wear on transmission components
• Ensures smooth operation of manual transmission systems

Installation Notes and Tips

When installing the FAG SS4978 manual transmission seal, ensure the transmission housing bore is clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal orientation matches the auxiliary lip direction to optimize sealing performance. Lubricate the seal lip with transmission fluid before installation to reduce initial wear and facilitate proper seating.

Quality Assurance and Warranty

FAG manufactures the SS4978 manual transmission seal to meet strict quality standards, ensuring durability and reliable sealing performance. The use of polyacrylate sealing material and metal spring construction supports long service life under typical operating conditions. Warranty coverage details should be confirmed with the parts distributor or manufacturer documentation.