National 4898 Wheel Seal - Front Outer or Rear Outer

National 4898 Wheel Seal Overview

The National 4898 wheel seal is engineered to provide reliable sealing performance for driveline and axle applications. Designed with precision to fit specific vehicle models, this oil seal helps maintain proper lubrication and prevent contamination in wheel hubs.

• Inside diameter: 2.047 inches (52.000 mm)
• Outside diameter: 2.603 inches (66.120 mm)
• Overall width with side lip: 0.476 inches (12.100 mm)
• Width: 0.295 inches (7.500 mm)
• Material: Durable nitrile rubber for resistance to oil and wear
• Series: 4000
• Type: 66

Detailed Product Description

The National 4898 wheel seal is constructed from nitrile, a material known for its excellent resistance to oil, heat, and abrasion, making it suitable for demanding automotive environments. With an inside diameter of 2.047 inches and an outside diameter of 2.603 inches, this seal fits precisely into housings with a bore diameter of approximately 2.598 inches (66 mm). The overall width, including the side lip, measures 0.476 inches, ensuring a secure fit that prevents leakage and contamination.

This oil seal is part of National's 4000 series, designed for driveline and axle sealing applications. It is compatible with a range of vehicles including Chevrolet, Dodge, Geo, Mitsubishi, and Toyota models such as the Colt, Corolla, Mirage, MR2, and Prizm. The part number 4898 identifies this specific seal, ensuring correct fitment and performance.

Common Applications and Issues Addressed

• Prevents oil leaks from wheel hubs and axle assemblies
• Protects bearings and internal components from dirt and moisture
• Maintains proper lubrication within the driveline system
• Reduces wear caused by contaminants entering the axle housing
• Helps avoid costly repairs due to seal failure or leakage

Installation Notes and Tips

• Ensure the housing bore and shaft are clean and free of debris before installation
• Use appropriate tools to press the seal evenly into the housing without damage
• Verify the seal lip is oriented correctly to face the lubricant side
• Check shaft surface for wear or damage that could compromise the seal
• Follow vehicle manufacturer torque specifications when reassembling components

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 4898 seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.