National 470950 Wheel Seal - Rear Inner

National 470950 Wheel Seal Overview

National 470950 is a wheel seal built for driveline and axle sealing applications where the shaft and housing dimensions must match precisely. It uses nitrile material and a Redi-Coat finish to support a reliable seal at the wheel end, helping maintain proper lubrication control in service.

With a 1.375 in. shaft diameter, 2.441 in. outside diameter, 2.437 in. housing bore, and 0.375 in. width, this seal is specified for applications that call for exact dimensional fitment. National 470950 is a direct-fit oil seal solution for select wheel seal applications, including vehicle service needs tied to Ford F-150 and Chevrolet Silverado wheel-end sealing.

Key Features

• National 470950 wheel seal for driveline and axle sealing systems
• Nitrile sealing material for dependable oil control
• Redi-Coat finish for improved sealing surface performance
• 1.375 in. shaft diameter and 2.441 in. outside diameter
• 2.437 in. housing bore and 0.375 in. width
• Type 47 seal design in the 470000 series

Detailed Product Description

National has supplied sealing products for more than 75 years, and the 470950 reflects that focus on dimensional accuracy and modern sealing design. This wheel seal is engineered as an oil seal with nitrile construction, making it a practical choice for wheel-end service where the seal must retain lubricant and help protect the hub area from contamination. The 470950 part number is also a useful reference when sourcing a replacement for service work on Ford F-150 and Chevrolet Silverado applications that require this seal size.

This part cross-references Bosch 13797 for the same application.

What This Seal Helps Address

• Oil leakage at the wheel end
• Contamination entering the hub or axle sealing area
• Wear from an aging or hardened seal lip
• Loss of proper lubricant retention in axle service
• Replacement needs during wheel-end maintenance on Ford F-150 and Chevrolet Silverado vehicles

Installation Notes and Tips

Verify shaft diameter, housing bore, and seal width before installation to confirm the seal matches the application. Inspect the sealing surface for scoring, corrosion, or debris, and clean the bore thoroughly before pressing the seal into place. Use proper installation tools to avoid distorting the seal lip or damaging the nitrile material. Confirm the replacement part number 470950 against the original seal specification before final assembly.

Quality Assurance

National is recognized for sealing solutions backed by long-term industry experience and ongoing product development for current vehicle platforms. The 470950 is built to the listed dimensions and material specification for consistent wheel-end sealing performance.