Timken SL260139 Automatic Transmission Output Shaft Seal - Right

Timken SL260139 Output Shaft Seal

The Timken SL260139 automatic transmission output shaft seal is built for direct-fit service on select Ford and Mercury applications. It helps retain transmission fluid at the output shaft while keeping dirt and debris out of the sealing area.

Key Features

• Precision sealing design for automatic transmission output shaft service
• Reinforced outer case helps resist installation damage and adds durability
• Ribbed rubber inner diameter helps seal minor spindle imperfections and supports positive seating
• Internal contamination exclusion system helps block debris that can lead to leakage
• Vent holes promote lubricant flow around the seal lip to reduce heat buildup

Detailed Description

Timken SL260139 is an automatic transmission output shaft seal engineered for vehicles that need reliable fluid retention at the transmission output shaft. It is a direct replacement for select 2009-2019 Ford Escape, 2010-2016 Ford Fusion, 2014 Ford Transit Connect, 2010-2011 Ford Fusion Non Hybrid, and 2009-2011 Mercury Mariner right-side applications. This part cross-references National 710706 and SKF 16066A for the same application. The seal’s reinforced construction, contamination exclusion features, and vented design support consistent sealing performance in demanding drivetrain service.

What It Helps Address

• Transmission fluid seepage at the output shaft seal
• Debris intrusion around the sealing surface
• Heat buildup at the seal lip
• Leakage caused by minor shaft surface imperfections
• Wear from damaged or deteriorated original seals

Installation Notes and Tips

Verify the transmission application and right-side fitment before installation. Inspect the shaft surface, seal bore, and surrounding components for wear, scoring, or contamination before pressing in the new seal. Clean the sealing area thoroughly and install the seal squarely to avoid distortion or premature leakage. For best results, compare the removed seal dimensions and orientation with Timken SL260139 before assembly.

Quality Assurance

Timken designs oil and grease seals with precision sealing features intended to support dependable drivetrain service. The SL260139 uses a reinforced case, contamination control features, and venting details to help maintain sealing integrity in compatible Ford Escape, Ford Fusion, Ford Transit Connect, and Mercury Mariner applications.