National 516008 Wheel Bearing - Rear

Reliable Wheel Bearing for Ford, Lincoln, and Mercury Vehicles

The National 516008 wheel bearing is engineered to meet the specific requirements of Ford, Lincoln, and Mercury models including the Aviator, Explorer, Explorer Sport Trac, and Mountaineer. Designed with precise dimensions and durable materials, this wheel bearing ensures consistent performance and longevity.

• Bore diameter: 1.850 inches (47.000 mm)
• Cone length: 1.7717 inches (45.000 mm)
• Cup length: 1.7717 inches (45.000 mm)
• Outer race width: 1.772 inches (45.000 mm)
• Outside diameter: 3.346 inches (85.000 mm)
• Design: Gen1 series 516000

Technical Specifications and Design Details

This National wheel bearing, part number 516008, features a Gen1 design optimized for driveline and axle applications. The precise bore size of 1.850 inches (47 mm) and consistent cone and cup lengths of 1.7717 inches (45 mm) provide a secure fit and smooth rotation. The outer race width and outside diameter are engineered to maintain proper alignment and reduce wear under typical driving conditions. This bearing is part of the 516000 series, known for compatibility with select Ford, Lincoln, and Mercury vehicles.

Compatible Vehicles and Applications

This wheel bearing is compatible with the following vehicles:

• Ford Explorer and Explorer Sport Trac
• Lincoln Aviator
• Mercury Mountaineer

It is designed to replace worn or damaged wheel bearings in these models, ensuring safe and reliable wheel rotation.

Common Issues Addressed by This Wheel Bearing

• Eliminates wheel noise caused by worn bearings
• Prevents uneven tire wear due to bearing play
• Restores smooth wheel rotation and handling
• Reduces vibration and steering instability
• Prevents potential wheel hub damage

Installation Notes and Tips

Proper installation of the National 516008 wheel bearing requires careful attention to fitment dimensions. Ensure the bore diameter and cone/cup lengths match the vehicle specifications. Use appropriate tools to press the bearing into place without damaging the races. Verify that the bearing is seated fully and rotates smoothly before reassembling the wheel hub. It is recommended to inspect related components such as seals and hubs during installation.

Quality Assurance and Warranty

National wheel bearings are manufactured to meet industry standards for durability and performance. The 516008 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 provide confidence in the product's reliability.