Timken 228480 Engine Crankshaft Seal - Rear

Reliable Engine Crankshaft Seal for Chevrolet, GMC, and Isuzu Vehicles

The Timken 228480 engine crankshaft seal is designed to provide durable sealing performance for select Chevrolet, GMC, and Isuzu models. Engineered with H-silicone material, this seal ensures effective protection against oil leaks and contamination in demanding engine environments.

• Constructed from high-quality H-silicone for enhanced durability and heat resistance
• Outside diameter measures 105.32 mm (4.146 inches) for precise fitment
• Shaft diameter of 82.00 mm (3.228 inches) compatible with specific engine crankshafts
• Seal width options of 13.00 mm (0.512 inches) to accommodate housing bore dimensions
• Counter-clockwise (CCW) helix type for optimized sealing performance
• Seal type 74 designed for reliable engine sealing applications

Detailed Product Description and Specifications

The Timken 228480 crankshaft seal is manufactured using H-silicone, a material known for its resistance to high temperatures and chemical degradation, making it suitable for engine sealing systems. The seal features an outside diameter of 105.32 mm (4.146 inches) and a shaft diameter of 82.00 mm (3.228 inches), ensuring a precise fit within the housing bore of 105.00 mm (4.134 inches). With a width of 13.00 mm (0.512 inches), this seal maintains a secure barrier against oil leaks. The counter-clockwise helix design helps maintain consistent sealing pressure during engine operation, reducing the risk of premature wear.

Compatible Vehicles and Applications

This Timken 228480 engine crankshaft seal is compatible with a range of Chevrolet, GMC, and Isuzu models, including Chevrolet I-Mark, Impulse, S10, S10 Blazer, S15, and S15 Jimmy; GMC Pickup; and Isuzu LUV and Trooper. It is specifically designed to meet the sealing requirements of these vehicles’ engine crankshafts, ensuring proper fit and function.

Common Issues Addressed by This Crankshaft Seal

• Prevents oil leaks around the engine crankshaft
• Reduces contamination ingress into the engine
• Minimizes premature seal wear due to heat and chemical exposure
• Maintains engine oil pressure and performance
• Helps avoid costly engine repairs related to seal failure

Installation Notes and Tips

• Ensure the housing bore and shaft are clean and free of debris before installation
• Use appropriate tools to avoid damaging the seal during installation
• Verify the helix direction matches the engine’s rotation (counter-clockwise)
• Apply a light coat of engine oil to the seal lip for easier installation and initial lubrication
• Check for proper seating and alignment to prevent leaks

Quality Assurance and Warranty Information

Timken manufactures the 228480 crankshaft seal to meet stringent quality standards, ensuring reliable performance in engine sealing applications. 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 terms.