Timken 320691 Engine Crankshaft Seal - Rear

Durable Timken Engine Crankshaft Seal for GM Vehicles

The Timken 320691 engine crankshaft seal is engineered to provide reliable sealing performance for select Buick, Chevrolet, Oldsmobile, and Pontiac models. Constructed from V-fluoro-elastomer, this seal offers resistance to heat, oil, and wear, ensuring long-lasting protection for your engine's crankshaft.

• Material: V-fluoro-elastomer for enhanced durability and chemical resistance
• Outside Diameter: 3.928 inches (99.77 mm)
• Shaft Diameter: 3.228 inches (81.99 mm)
• Width: 0.500 inches (12.70 mm)
• Seal Type: 32, designed for precise fit and sealing
• Housing Bore: 3.918 inches (99.52 mm)

Technical Details and Specifications

This Timken crankshaft seal (part number 320691) is manufactured to meet exacting standards for fit and function. The V-fluoro-elastomer material provides excellent resistance to engine fluids and high temperatures, making it suitable for demanding engine environments. The seal’s dimensions, including a 3.928-inch outside diameter and 3.228-inch shaft diameter, ensure compatibility with specific GM engine configurations. The 0.500-inch width and seal type 32 design contribute to a secure and effective seal, preventing oil leaks and contamination.

Compatible Buick, Chevrolet, Oldsmobile, and Pontiac Models

This crankshaft seal is compatible with a range of General Motors vehicles, including Buick models like the LeSabre, Lucerne, and Park Avenue; Chevrolet models such as the Camaro, Impala, and Monte Carlo; Oldsmobile models including the 88 and 98 series; and Pontiac models like the Firebird, Grand Prix, and Grand Am. It is designed to fit engines requiring the specified dimensions and seal type, ensuring proper installation and performance.

Common Applications and Problem Solving

• Prevents oil leaks around the crankshaft area
• Protects engine components from dirt and contaminants
• Maintains engine oil pressure and efficiency
• Reduces risk of crankshaft seal failure due to heat and chemical exposure
• Helps avoid costly engine repairs related to seal degradation

Installation Notes and Tips

When installing the Timken 320691 crankshaft seal, ensure the housing bore and shaft surfaces are clean and free of debris. Use appropriate tools to avoid damaging the seal during installation. Verify the seal orientation matches manufacturer specifications to maintain proper sealing. Lubricate the seal lip lightly with engine oil before installation to reduce initial wear. Check for proper fitment with the specific Buick, Chevrolet, Oldsmobile, or Pontiac model engine to ensure compatibility.

Quality Assurance and Warranty

Timken manufactures this crankshaft seal to meet industry standards for durability and performance. The use of V-fluoro-elastomer material ensures resistance to heat and chemical degradation. While specific warranty details may vary, Timken products typically come with a limited warranty against manufacturing defects. Refer to Timken’s official documentation for complete warranty information.