National 517011 Wheel Bearing - Front

Overview of National 517011 Wheel Bearing

The National 517011 wheel bearing is engineered for reliable driveline performance in select Toyota models. Designed with precise dimensions and a Gen1 design, this wheel bearing supports smooth wheel rotation and vehicle stability.

• Compatible with Toyota 4Runner, Sequoia, Tacoma, and Tundra models
• Outer diameter: 96.00 mm (3.78 inches)
• Bore diameter: 54.00 mm (2.126 inches)
• Outer race width: 51.00 mm (2.008 inches)
• Cone radius: 3.5 mm (0.1378 inches)
• Cup radius: 0.8 mm (0.0315 inches)
• Gen1 design for standard fitment and durability

Technical Specifications and Design Details

The National 517011 wheel bearing features a bore diameter of 54 mm (2.126 inches) and an outside diameter of 96 mm (3.78 inches), ensuring compatibility with the wheel hubs of Toyota 4Runner, Sequoia, Tacoma, and Tundra vehicles. The outer race width measures 51 mm (2.008 inches), providing a stable seating surface. The cone radius of 3.5 mm and cup radius of 0.8 mm contribute to the bearing's precise fit and smooth operation. This part is part of the 517000 series and utilizes a Gen1 design, which is a standard configuration for these applications.

Applications and Common Issues Addressed

• Replaces worn or damaged wheel bearings on Toyota 4Runner, Sequoia, Tacoma, and Tundra
• Eliminates wheel noise caused by bearing wear
• Restores proper wheel alignment and rotation
• Prevents excessive wheel play and vibration
• Supports safe and stable vehicle handling

Installation Notes and Tips

When installing the National 517011 wheel bearing, ensure the hub and spindle surfaces are clean and free of debris. Use appropriate tools to press the bearing into place without damaging the races. Verify the bearing is seated fully and rotates smoothly before reassembling the wheel components. Proper torque specifications should be followed for all fasteners to maintain bearing performance and safety.

Quality Assurance and Warranty

National wheel bearings are manufactured to meet OEM standards for fit and function. The 517011 part number undergoes rigorous quality control to ensure durability and reliability in Toyota 4Runner, Sequoia, Tacoma, and Tundra applications. This wheel bearing is backed by National's standard warranty coverage, providing confidence in its performance and longevity.