Timken 2003N Wheel Seal

Timken 2003N Wheel Seal Overview

The Timken 2003N wheel seal is built for rear axle sealing where lubricant retention and contamination control matter. It uses an S-Nitrile sealing material with a reinforced outer case and a ribbed inner diameter to help seat securely on the spindle.

Compatible With select Nissan Frontier rear applications, Nissan Xterra rear applications, INFINITI QX4 rear inner applications, and other listed vehicles, this seal is a direct-fit service part for common driveline sealing repairs. The Timken 2003N is also cross-referenced with SKF 14021 for the same application.

Key Features

• S-Nitrile construction for sealing performance in driveline service
• Outside diameter: 2.169 in. / 55.09 mm
• Shaft diameter: 1.417 in. / 36.00 mm
• Housing bore: 2.165 in. / 55.00 mm
• Width: 0.256 in. / 6.50 mm
• Reinforced outer case helps resist installation damage
• Ribbed rubber inner diameter helps seal minor spindle imperfections
• Internal contamination exclusion system helps block debris entry
• Vent holes promote lubricant flow around the seal lip to reduce heat buildup

Detailed Description

Timken 2003N is a wheel seal designed for rear axle and rear inner sealing positions where maintaining clean lubricant is critical. Its precision sealing design helps keep grease or oil inside the hub area while limiting the entry of dirt and other contaminants that can lead to leakage and premature wear. The seal dimensions are specified for accurate fitment, and the ribbed inner diameter supports positive seating on spindles with minor surface imperfections. This part number is commonly searched for Nissan Frontier rear wheel seal and Nissan Xterra rear wheel seal service, as well as INFINITI QX4 rear inner seal replacement.

What It Helps Address

• Wheel-end lubricant leakage
• Contamination entering the hub or axle area
• Seal wear from heat buildup
• Minor spindle surface irregularities affecting seal contact
• Rear axle sealing service on listed Nissan, Ford, Mercury, Chevrolet, and INFINITI applications

Installation Notes and Tips

Verify housing bore, shaft diameter, and width against the original seal before installation. Clean the sealing surface thoroughly and inspect the spindle or hub for grooves, corrosion, or damage that could affect sealing. For best results, install the seal squarely to avoid distortion of the outer case or sealing lip. Confirm vehicle position carefully, since fitment includes rear, rear inner, left, right, and N/A applications depending on the vehicle.

Quality Assurance

Timken oil and grease seals are engineered with reinforced construction and contamination control features to support dependable driveline service. This part number 2003N is built to the listed dimensions and material specification for the applications shown.