Timken SL260126 Manual Transmission Extension Housing Seal - Rear

Timken SL260126 Manual Transmission Seal

Timken SL260126 is a manual transmission extension housing seal built to help retain lubricant and block road debris from entering the transmission area. It is a direct-fit sealing component for select Ford, Chevrolet, GMC, and Jaguar applications, including rear-position truck fitments and several passenger car models.

Key Features

• Precision sealing design helps reduce lubricant escape at the extension housing
• Reinforced outer case helps resist installation damage and improve durability
• Ribbed rubber inner diameter seals minor spindle imperfections and supports positive seating
• Internal contamination exclusion system helps keep debris out of the seal area
• Vent holes promote lubricant flow around the seal lip to reduce heat build-up
• Timken SL260126 is engineered for manual transmission extension housing service

Detailed Description

Timken SL260126 is a manual transmission extension housing seal for vehicles that need dependable lubricant retention at the transmission tail housing. It is listed for 2000-2010 Ford F-250 Super Duty rear, 2000-2010 Ford F-350 Super Duty rear, 2001-2006 Chevrolet Silverado 2500 HD rear, 2001-2006 Chevrolet Silverado 3500 rear, 2001-2006 GMC Sierra 2500 HD rear, 2001-2006 GMC Sierra 3500 rear, 2000-2003 Jaguar Vanden Plas, 2000-2003 Jaguar XJ8, 2000-2002 Jaguar XK8, and 2000 Ford Mustang. This part number, SL260126, is built for applications where a worn seal can lead to fluid loss and contamination at the transmission extension housing.

Common Problems This Seal Can Address

• Transmission fluid seepage at the extension housing
• Contamination entering the seal area from road debris
• Heat-related seal wear around the lip surface
• Leakage caused by minor shaft or spindle surface imperfections
• Service issues on rear-position truck driveline applications

Installation Notes and Tips

Inspect the shaft surface, housing bore, and surrounding components before installation. Clean the sealing area thoroughly and verify the replacement seal seats evenly in the extension housing. For best results, confirm vehicle application by year, make, model, and position before installing Timken SL260126.

Quality Assurance

Timken uses precision sealing designs and reinforced construction features to support consistent sealing performance in transmission service. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.