SKF 25140 Differential Pinion Seal - Rear

SKF 25140 Differential Pinion Seal Overview

SKF 25140 is a differential pinion seal built for rear axle service where gear oil retention and contamination control matter. With a 2.500 shaft diameter, 4.040 outside diameter, and LongLife sealing surface type, this seal is designed for precise fitment in supported Jeep, Ford, Dodge, Chevrolet, and GMC applications.

For rear differential repair on vehicles such as the Jeep Liberty, Ford F-350 Super Duty, and Dodge Ram 2500, SKF 25140 helps restore the sealing surface at the pinion area and maintain proper lubricant containment.

Key Features

• Part number: 25140
• Differential pinion seal for rear axle service
• 2.500 shaft diameter and 4.040 outside diameter
• LongLife sealing surface type for durable sealing performance
• Made with premium materials and application-specific design
• Cross-reference: Gates 43504

Detailed Product Description

SKF 25140 is engineered as a rear differential pinion seal for vehicles that require accurate sealing at the pinion shaft. SKF has a long history in seal design and manufacturing, and this part reflects that focus with application-specific construction and material selection. The seal is intended to help keep differential lubricant inside the axle housing while reducing the entry of dirt, water, and road debris.

This part cross-references Gates 43504 for the same application. It is also associated with interchange numbers 4773237, 12387291, 145825140, 975925140, and CHR 25140. Common fitment includes 2002-2007 Jeep Liberty, rear; 2002-2005 Ford F-350 Super Duty, rear; and 1994-2002 Dodge Ram 2500, rear with Dana 80 axle.

What This Seal Helps Address

• Rear differential gear oil leaks at the pinion area
• Contamination entering the axle housing through a worn seal
• Oil seepage that can leave the differential low on lubricant
• Noise or wear concerns related to inadequate axle lubrication
• Seal replacement during rear axle service on supported Jeep, Ford, Dodge, Chevrolet, and GMC models

Installation Notes and Tips

Confirm shaft diameter, outside diameter, and axle configuration before installation. This seal is listed for rear applications only, including Dana 80 axle and 11.50-inch ring gear configurations on specific vehicles. Inspect the pinion yoke and sealing surface for wear or scoring before installing SKF 25140, and replace damaged mating components as needed to help achieve a proper seal.

Fitment examples include 2002-2007 Jeep Liberty, rear; 1988-1997 Ford F-350, rear; and 1989-1996 Chevrolet C3500, rear with 11.50-inch ring gear.

Quality Assurance

SKF designs and manufactures seals to high quality standards using premium materials and application-specific engineering. The LongLife sealing surface type is selected to support durable sealing performance in demanding driveline environments.