National 710649 Wheel Seal - Rear Inner

Overview of National 710649 Wheel Seal for Toyota Vehicles

The National 710649 wheel seal is engineered to provide reliable sealing performance for Toyota 4Runner, Tacoma, and Tundra models. Designed with precision dimensions and durable materials, this oil seal helps maintain driveline integrity and prevent leaks in demanding automotive applications.

• Compatible with Toyota 4Runner, Tacoma, and Tundra
• Part number 710649 for easy identification
• Bi-directional lip design for enhanced sealing
• Constructed from durable polyacrylate material
• Metric dimensions: 50 mm shaft diameter, 70 mm outside diameter, 9 mm width

Technical Specifications and Design Features

The National 710649 wheel seal features a bi-directional lip design that ensures effective sealing against contaminants and fluid leakage in both rotational directions. The seal has an inside diameter of 50.000 mm (1.969 inches) matching the shaft size, and an outside diameter of 70.230 mm (2.756 inches) to fit the housing bore precisely. With a width of 9.000 mm (0.354 inches), this seal fits securely within the housing bore of 70.000 mm (2.765 inches). Manufactured from polyacrylate, the seal offers resistance to heat, oil, and wear, making it suitable for driveline and axle applications in Toyota trucks and SUVs.

Applications and Problem Solving

This wheel seal is designed to address common issues related to driveline and axle maintenance in Toyota 4Runner, Tacoma, and Tundra vehicles. It helps prevent:

• Oil leaks from axle shafts
• Contaminant ingress causing premature bearing wear
• Loss of lubrication leading to driveline damage
• Seal failure due to improper fit or material degradation
• Excessive noise or vibration from axle components

Installation Notes and Tips

For optimal performance, ensure the housing bore and shaft surfaces are clean and free of debris before installation. Use appropriate tools to press the seal evenly into the housing bore without distortion. Verify the seal’s orientation matches the bi-directional lip design to maintain effective sealing. Avoid using excessive force during installation to prevent damage to the polyacrylate material.

Quality Assurance and Warranty

National wheel seals, including part number 710649, are manufactured to meet industry standards for durability and performance. The polyacrylate material and precise dimensional tolerances contribute to consistent sealing reliability. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in their products.