Timken 100165 Automatic Transmission Output Shaft Seal - Left

Automatic Transmission Output Shaft Seal for GM and Volvo

Timken 100165 is an automatic transmission output shaft seal built to help retain lubricant and block contaminants at the transmission shaft. It is a direct-fit service part for a wide range of GM and Volvo applications, including Pontiac G6, Chevrolet Malibu, and Volvo XC90 models.

• Precision sealing design helps reduce fluid escape and keep debris out
• Reinforced outer case helps resist installation damage
• Ribbed rubber inner diameter helps seal minor spindle imperfections
• Internal contamination exclusion system helps limit debris intrusion
• Vent holes promote lubricant flow around the seal lip to reduce heat build-up

Detailed Product Overview

Built for transmission sealing service, Timken 100165 is designed for the output shaft area where consistent sealing is critical. Its construction supports a secure fit at the shaft, while the ribbed inner diameter helps maintain contact even when the spindle surface is not perfectly uniform. This makes it a practical replacement for vehicles such as the Pontiac G6, Chevrolet Malibu, and Volvo XC90 when addressing transmission fluid leakage at the output shaft.

This part cross-references National 100165 for the same application.

Common Problems This Seal Can Address

• Transmission fluid leaking from the output shaft area
• Contamination entering the seal area and affecting sealing performance
• Seal wear caused by heat build-up around the lip
• Leakage related to minor shaft surface imperfections
• Service replacement for worn or damaged output shaft seals

Installation Notes and Tips

• Inspect the shaft surface for scoring, burrs, or contamination before installation.
• Clean the sealing bore and surrounding area thoroughly before pressing in the new seal.
• Verify the seal is seated evenly to avoid distortion during assembly.
• Use proper installation tools to reduce the risk of case or lip damage.
• Confirm vehicle application by year, make, model, and left-side position before ordering.

Quality Assurance

Timken sealing components are engineered with reinforced construction and contamination control features to support dependable transmission service. Part number 100165 is listed with confirmed fitment across multiple GM and Volvo vehicles, including 2006-2009 Pontiac G6, 2006-2008 Chevrolet Malibu, and 2005-2006 Volvo XC90, left side.