National 710481 Differential Pinion Seal - Rear Outer

National 710481 Differential Pinion Seal Overview

The National 710481 differential pinion seal is engineered to provide reliable sealing performance for driveline components. Designed specifically for Chrysler, Dodge, Mitsubishi, and Ram vehicles, this oil seal ensures effective protection against leaks and contamination in the differential assembly.

• Inside diameter options: 1.893 inch (48.080 mm)
• Outside diameter: 2.816 inch (71.530 mm)
• Thickness: 0.458 inch (11.630 mm)
• Flanged outside diameter: 3.032 inch (77.000 mm)
• Bi-directional lip design for enhanced sealing
• Constructed from durable fluoro-elastomer material
• Compatible with housing bore diameter of 2.811 inch (71.400 mm)

Technical Details and Material Specifications

The National 710481 differential pinion seal features a bi-directional lip design that provides effective sealing against oil leaks in both rotational directions. Its fluoro-elastomer construction offers resistance to heat, oil, and wear, making it suitable for demanding driveline environments. The seal’s precise dimensions, including an inside diameter of 1.893 inches and an outside diameter of 2.816 inches, ensure a secure fit within the differential housing bore of 2.811 inches. The flanged outside diameter of 3.032 inches adds stability during installation and operation.

Compatible Vehicles and Applications

This differential pinion seal is compatible with a range of Chrysler, Dodge, Mitsubishi, and Ram models, including Ram 1500, Ram 2500, Ram 3500 Van, Dakota, Durango, Aspen, Raider, and 1500 Classic. The part number 710481 is designed to meet the specific sealing requirements of these vehicles’ driveline and axle systems.

• Prevents oil leaks in differential pinion shafts
• Protects against dirt and debris contamination
• Maintains proper lubrication within the differential
• Reduces wear on driveline components
• Helps avoid costly differential repairs

Installation Notes and Tips

Ensure the differential housing bore is clean and free of debris before installing the National 710481 seal. Use appropriate tools to press the seal evenly into place without damaging the fluoro-elastomer material. Verify the seal’s orientation matches the bi-directional lip design for optimal performance. Proper installation will help maintain the integrity of the seal and extend the service life of the differential components.

Quality Assurance and Warranty

National manufactures the 710481 differential pinion seal to meet industry standards for durability and performance. The fluoro-elastomer material and precise engineering contribute to consistent sealing under various operating conditions. While specific warranty details are not provided, National products are generally backed by quality control processes to ensure reliability in automotive applications.