National 455860 Wheel Seal - Rear Inner

Overview of National 455860 Wheel Seal for Chevrolet and Jeep

The National 455860 wheel seal is designed to provide reliable sealing performance for driveline components in Chevrolet and Jeep vehicles. Engineered with nitrile material, this oil seal ensures durability and effective protection against contaminants for models like the Chevrolet C20 Suburban, J20, and K20 Suburban.

• Inside diameter: 2.375 inches (60.33 mm)
• Outside diameter: 3.881 inches (98.58 mm)
• Housing bore: 3.876 inches (98.45 mm)
• Width: 0.468 inches (11.89 mm)
• Material: Nitrile for resistance to oil and wear
• Part number: 455860
• Compatible with Chevrolet C20 Suburban, J20, and K20 Suburban

Technical Details and Specifications

The National 455860 wheel seal belongs to the 450000 series and is constructed from nitrile, a synthetic rubber known for its resistance to petroleum-based oils and high temperatures. The seal features a 2.375-inch (60.33 mm) inside diameter that fits the shaft precisely, while the 3.881-inch (98.58 mm) outside diameter matches the housing bore of 3.876 inches (98.45 mm) to ensure a secure fit. With a width of 0.468 inches (11.89 mm), this oil seal maintains proper sealing pressure to prevent leaks and contamination in the driveline system.

Applications and Problem Solving

This wheel seal is specifically designed for use in Chevrolet and Jeep trucks, including the Chevrolet C20 Suburban, J20, and K20 Suburban models. It addresses common driveline sealing issues such as:

• Preventing oil leaks from axle housings
• Protecting bearings and internal components from dirt and moisture
• Reducing wear caused by contaminants
• Maintaining proper lubrication within the axle assembly
• Extending the service life of driveline components

Installation Notes and Tips

When installing the National 455860 wheel seal, ensure the shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip. Verify the seal orientation matches the original installation to maintain effective sealing. Lubricate the seal lip lightly with compatible oil before installation to reduce initial wear.

Quality Assurance and Warranty

National wheel seals are manufactured to meet industry standards for durability and performance. The 455860 part number is produced with quality-controlled nitrile material to withstand typical operating conditions in Chevrolet and Jeep driveline systems. While specific warranty details may vary, National products generally come with a limited warranty against manufacturing defects to ensure reliability in service.