National 710642 Wheel Seal - Front or Rear Inner

Overview of National 710642 Wheel Seal

The National 710642 wheel seal is engineered for reliable driveline sealing in select Mini, Porsche, and Toyota vehicles. Designed with nitrile material, this oil seal ensures effective protection against contaminants and fluid leaks in your vehicle's axle assembly.

• Inside diameter: 1.496 inches (38.000 mm)
• Outside diameter: 2.055 inches (52.200 mm)
• Thickness: 0.276 inches (7.000 mm)
• Overall width with side lip: 0.287 inches (7.300 mm)
• Sealing material: Durable nitrile for oil resistance
• Compatible with shaft diameter of 1.496 inches (38.000 mm)
• Part number: 710642, series 710600

Technical Details and Material Specifications

This wheel seal is constructed from nitrile, a synthetic rubber known for its resistance to oil, heat, and wear. The precise dimensions, including a 1.496-inch inside diameter and a 2.055-inch outside diameter, make it suitable for axle shafts requiring tight sealing tolerances. The overall width with side lip of 0.287 inches provides an effective barrier against dirt and moisture intrusion, maintaining axle integrity and performance.

Compatible Vehicles and Applications

The National 710642 wheel seal is compatible with various models from Mini, Porsche, and Toyota. Specifically, it fits Porsche 924, 944, 968, Boxster, and Cayman models, as well as Mini Cooper and Toyota Paseo and Tercel vehicles. This part is designed to maintain driveline reliability by preventing oil leaks and contamination in these applications.

• Prevents oil leaks in axle assemblies
• Protects against dirt and moisture ingress
• Reduces wear on axle shafts and bearings
• Maintains proper lubrication within the driveline
• Helps avoid costly driveline repairs

Installation Notes and Tips

When installing the National 710642 wheel seal, ensure the shaft and housing bore are clean and free of debris. The housing bore diameter is 2.047 inches (52.000 mm), which should match the seal’s outside diameter for a secure fit. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Lubricate the seal lip lightly with clean 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 nitrile material offers consistent resistance to oil and heat, ensuring long service life. This product is part of the 710600 series, known for reliable sealing solutions in automotive driveline applications. Warranty coverage details should be confirmed with the distributor or manufacturer.