Timken 710590 Automatic Transmission Output Shaft Seal - Left

Timken 710590 Transmission Output Shaft Seal

Timken 710590 is an automatic transmission output shaft seal built for controlled sealing at the transmission output shaft. It is a direct-fit service part for select Ford, Lincoln, Mercury, and Volvo applications, including Ford Fusion, Lincoln MKZ, Mercury Milan, Ford Five Hundred, Mercury Montego, Volvo XC90, and Lincoln Zephyr.

Key Features

• Precision sealing design helps retain transmission lubricant and block contaminants.
• Reinforced outer case helps resist installation damage and supports durability.
• Ribbed rubber inner diameter helps seal minor spindle imperfections and promotes positive seating.
• Internal contamination exclusion system helps reduce debris intrusion that can lead to leakage.
• Vent holes promote lubricant flow around the seal lip to help manage heat buildup.

Detailed Description

This Timken automatic transmission output shaft seal is engineered for service on select left-side applications across the 2005-2012 model years. It is a practical replacement for vehicles such as the 2006-2012 Ford Fusion, left; 2007-2012 Lincoln MKZ, left; 2006-2009 Mercury Milan, left; 2005-2007 Ford Five Hundred, left; 2005-2007 Mercury Montego, left; 2007 Volvo XC90, left; and 2006 Lincoln Zephyr, left. Timken 710590 is designed to help maintain proper sealing at the output shaft where fluid retention and contamination control are critical to transmission performance.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Transmission fluid seepage at the output shaft seal
• Contamination entering the transmission through a worn seal area
• Leakage caused by minor shaft surface imperfections
• Heat-related seal wear from poor lubricant circulation
• Seal damage during replacement of a worn output shaft seal

Installation Notes and Tips

Verify the vehicle’s year, make, model, and left-side application before installation. Inspect the shaft surface for wear, scoring, or contamination before fitting the new seal, and clean the sealing area thoroughly so the seal lip can seat evenly. Proper alignment during installation is important to avoid case distortion and premature leakage.

Quality Assurance

Timken oil and grease seals are built with precision sealing features and contamination control details intended to support reliable service life in drivetrain applications.