FAG SS3951 Engine Crankshaft Seal - Rear

Reliable Engine Crankshaft Seal for GM Vehicles

The FAG SS3951 engine crankshaft seal is designed to provide durable sealing performance for a range of General Motors vehicles. Engineered with nitrile sealing material and a metal spring auxiliary lip, this seal ensures effective protection against oil leaks and contaminants.

• Seal Type: Metal with spring and auxiliary lip for enhanced sealing
• Sealing Material: Durable nitrile for resistance to heat and oil
• Bore Diameter: Approximately 2.88 inches (73.152 mm)
• Seal Outside Diameter: Approximately 2.88 inches (73.254 mm)
• Seal Width: 0.375 inches (9.525 mm)

Technical Details and Specifications

The FAG SS3951 crankshaft seal features a metal construction combined with a spring and auxiliary lip design to maintain a tight seal around the crankshaft. The nitrile sealing material offers reliable resistance to engine oils and high temperatures, making it suitable for long-term use. With precise bore and outside diameters of about 2.88 inches, this seal fits securely in the crankshaft housing, minimizing the risk of leaks. The 9.525 mm width provides a robust sealing surface to withstand engine vibrations and pressure changes.

Compatible Vehicles and Applications

This crankshaft seal is compatible with various Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models, including but not limited to:

• Buick Century, LeSabre, Skylark
• Cadillac DeVille, Eldorado, Seville
• Chevrolet Malibu, Monte Carlo, Custom Cruiser
• Oldsmobile Cutlass, Delta 88, 98
• Pontiac Firebird, Grand Prix, Catalina

Use the FAG SS3951 seal for maintenance or repair of crankshaft oil leaks in these specific GM vehicles.

Common Issues Addressed by the SS3951 Crankshaft Seal

• Prevents oil leaks around the crankshaft area
• Reduces contamination ingress into the engine
• Maintains engine oil pressure and efficiency
• Minimizes wear caused by oil leakage
• Helps avoid costly engine damage due to seal failure

Installation Notes and Tips

Ensure the crankshaft and housing surfaces are clean and free of debris before installation. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Verify the correct orientation of the metal spring and auxiliary lip to maintain optimal sealing performance. It is recommended to inspect related components such as bearings and gaskets during installation.

Quality Assurance and Warranty

FAG manufactures the SS3951 crankshaft seal to meet strict quality standards for durability and performance. The use of nitrile sealing material and metal spring design ensures long-lasting service life under typical operating conditions. Warranty coverage details should be confirmed with the product documentation or supplier.