National 453X Wheel Bearing Race - Front Inner, Rear or Rear Outer

National 453X Wheel Bearing Race Overview

The National 453X wheel bearing race is engineered for reliable driveline performance in heavy-duty vehicles. Designed as a taper bearing cup, this component is compatible with select Chevrolet, Dodge, Ford, and GMC models, ensuring precise fitment and durability.

• Compatible with Chevrolet C30, C3500, Silverado 3500, and Sierra 3500 Classic
• Fits Dodge Ram 2500 and Ram 3500 models
• Suitable for Ford F-150, F-150 Heritage, F-250 Super Duty, F-350 Super Duty, and E-350 Econoline series
• Cup bore diameter: 4.1250 inches (104.775 mm)
• Cup length: 0.9687 inches (24.605 mm)
• Cup radius: 0.1250 inches (3.175 mm)

Technical Specifications and Design Details

The National 453X wheel bearing race features a taper bearing cup design optimized for heavy-duty axle assemblies. The cup bore measures 4.1250 inches (104.775 mm), providing a precise seating surface for the bearing cone. With a cup length of 0.9687 inches (24.605 mm) and a cup radius of 0.1250 inches (3.175 mm), this part ensures proper alignment and load distribution within the wheel hub assembly. These dimensions are critical for maintaining bearing integrity and preventing premature wear in demanding applications.

Compatible Vehicles and Applications

This wheel bearing race is compatible with a range of heavy-duty trucks and vans, including Chevrolet C30, C3500, Silverado 3500, and Sierra 3500 Classic models. It also fits Dodge Ram 2500 and Ram 3500 trucks, as well as Ford F-150, F-150 Heritage, F-250 Super Duty, F-350 Super Duty, and E-350 Econoline vans. The National 453X is designed to meet the specifications required for these vehicles’ driveline and axle assemblies, ensuring reliable performance under load.

Common Issues Addressed by the National 453X Wheel Bearing Race

• Eliminates wheel bearing play caused by worn or damaged bearing races
• Prevents uneven bearing wear and potential axle damage
• Reduces noise and vibration from faulty bearing seating
• Restores proper bearing alignment for improved driveline efficiency
• Supports heavy load capacity in trucks and vans

Installation Notes and Tips

When installing the National 453X wheel bearing race, ensure the hub and spindle surfaces are clean and free of debris. Use a proper bearing race driver tool to seat the cup evenly without damaging the race or surrounding components. Verify the cup bore and length dimensions match the vehicle specifications to avoid fitment issues. It is recommended to inspect the bearing cones and seals during installation and replace them if necessary to maintain optimal performance.

Quality Assurance and Warranty Information

National wheel bearing races are manufactured to meet industry standards for durability and precision. The 453X part number 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 support professional repair and maintenance needs.