Timken 340847 Automatic Transmission Shift Shaft Seal

Reliable Automatic Transmission Shift Shaft Seal for Buick, Chevrolet, Pontiac

The Timken 340847 Automatic Transmission Shift Shaft Seal is engineered to provide a precise fit and durable sealing solution for select Buick, Chevrolet, and Pontiac models. Designed with S-nitrile material, this seal ensures effective resistance to heat and transmission fluids, maintaining optimal performance in your vehicle's transmission system.

• Constructed from durable S-nitrile material for enhanced fluid resistance
• Outside diameter measures 0.759 inches (19.28 mm) for accurate fitment
• Shaft diameter of 0.500 inches (12.70 mm) ensures proper sealing around the shift shaft
• Housing bore dimension of 0.750 inches (19.05 mm) for secure installation
• Seal width of 0.125 inches (3.17 mm) designed for reliable sealing performance

Technical Details and Specifications

The Timken 340847 shift shaft seal is specifically designed to fit automatic transmissions in Buick, Chevrolet, and Pontiac vehicles, including models such as the Corvette, Monte Carlo, Monza, Nova, Skyhawk, and Sunbird. The seal type 34 provides a tight barrier against transmission fluid leaks, helping to maintain system integrity. Its S-nitrile composition offers resistance to heat, oil, and wear, which is critical for the demanding environment inside an automatic transmission.

Compatible Vehicles and Applications

This automatic transmission shift shaft seal is compatible with the following makes and models:

• Buick: Various models requiring a 0.500 inch shaft diameter seal
• Chevrolet: Corvette, Monte Carlo, Nova
• Pontiac: Monza, Skyhawk, Sunbird

It is designed to replace worn or damaged seals that cause transmission fluid leaks, shaft wear, or shifting issues.

Common Issues Addressed by Timken 340847 Seal

• Prevents transmission fluid leaks around the shift shaft
• Reduces contamination and wear on the transmission shift shaft
• Maintains proper hydraulic pressure within the transmission
• Helps avoid shifting problems caused by fluid loss
• Protects internal transmission components from damage

Installation Notes and Tips

• Ensure the transmission housing bore is clean and free of debris before installation
• Verify shaft and bore dimensions match the seal specifications (0.500 inch shaft diameter, 0.750 inch housing bore)
• Use appropriate tools to avoid damaging the seal during installation
• Lubricate the seal lip with transmission fluid prior to installation for smoother fit
• Inspect the shift shaft for wear or damage before installing the new seal

Quality Assurance and Warranty

Timken manufactures the 340847 shift shaft seal to meet strict quality standards, ensuring reliable performance and durability. The use of S-nitrile material provides resistance to heat and transmission fluids, contributing to a longer service life. While specific warranty details may vary, Timken products typically come with a limited warranty against manufacturing defects, providing confidence in the product's quality and reliability.