Timken 100727 Differential Pinion Seal - Rear or Rear Outer

Timken 100727 Differential Pinion Seal

The Timken 100727 differential pinion seal is built for rear axle sealing performance on select Ford and Dodge trucks and vans. It helps keep gear oil inside the axle housing while blocking dirt and debris from entering the pinion area.

Key Features

• Precision sealing design for differential pinion applications
• Reinforced outer case helps resist installation damage
• Ribbed rubber inner diameter seals minor spindle imperfections and supports a secure seat
• 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

Detailed Description

Timken 100727 is a differential pinion seal for rear axle service, including Dana/Spicer 80 axle applications in Ford F-350 Super Duty, Ford E-350 Super Duty, Ford E-350 Club Wagon, and Ford E-350 Econoline Club Wagon models, plus Dana Model 80 axle use in the 2002 Dodge Ram 2500 and 2002 Dodge Ram 3500. This seal is engineered to retain lubricant at the pinion area while helping protect the axle from contamination that can lead to premature wear or leakage. This part cross-references National 100727 and SKF 25056 for the same application.

What It Helps Fix

• Gear oil leaking from the rear differential pinion area
• Contamination entering the axle seal surface
• Seal damage during installation
• Heat-related seal wear from poor lubricant circulation
• Leakage caused by minor surface imperfections at the sealing diameter

Installation Notes and Tips

Verify axle type and position before installation. Compatible With 1999-2010 Ford F-350 Super Duty, rear, Dana/Spicer 80 Axle; 2004-2008 Ford E-350 Super Duty, rear, Dana/Spicer 80 Axle; 2003-2005 Ford E-350 Club Wagon, rear, Dana/Spicer 80 Axle; 2002 Dodge Ram 2500, rear outer, Dana Model 80 Axle; 2002 Dodge Ram 3500, rear; and 1999-2002 Ford E-350 Econoline Club Wagon, rear, Dana/Spicer 80 Axle. Inspect the pinion surface for wear or scoring before sealing.

Quality Assurance

Timken manufactures oil and grease seals with precision sealing designs, reinforced construction, and contamination control features to support dependable axle service.