National 710642 Wheel Seal - Front or Rear Inner

Wheel Seal for Driveline Service

National 710642 is a metric wheel seal built with nitrile sealing material for dependable sealing performance in driveline and axle applications. With a 38.000 mm shaft size, 52.200 mm outside diameter, and 7.000 mm width, it is sized for precise housing and shaft fitment in supported vehicles.

Fits 2000-2008 Porsche Boxster, front; Fits 2007-2008 Porsche Cayman, front; Fits 1992-1995 Porsche 968, front; Fits 1983-1991 Porsche 944, front; Fits 1987-1988 Porsche 924, front; Fits 1992-1999 Toyota Paseo, rear inner; Fits 1991-1999 Toyota Tercel, rear inner; Fits 2002-2008 Mini Cooper, N/A with ZF VT1F Transmission.

• Nitrile sealing material for oil-resistant performance
• Metric dimensions for accurate shaft and housing matching
• Inside diameter: 1.496 in. / 38.000 mm
• Outside diameter: 2.055 in. / 52.200 mm
• Width: 0.276 in. / 7.000 mm
• Overall width with side lip: 0.287 in. / 7.300 mm
• Housing bore: 2.047 in. / 52.000 mm
• Part number: 710642

Detailed Application Coverage

This National wheel seal is used in front, rear inner, and transmission-related applications across select Porsche, Toyota, and Mini models. It is a direct-fit sealing component for vehicles such as the Porsche Boxster, Porsche Cayman, Porsche 944, Porsche 968, Porsche 924, Toyota Paseo, Toyota Tercel, and Mini Cooper with ZF VT1F transmission coverage. National 710642 also cross-references SKF 14705 for the same application.

Common Problems It Can Address

• Gear oil or lubricant seepage at the wheel or axle seal area
• Contamination entering the hub, axle, or transmission sealing surface
• Seal wear from age, heat, and normal driveline operation
• Loss of sealing integrity caused by hardened or damaged original seals
• Service issues related to incorrect seal dimensions or poor housing fit

Installation Notes and Tips

Verify shaft diameter, housing bore, and seal width before installation to confirm the correct metric fit. Inspect the sealing surface for scoring, corrosion, or debris, and replace worn components as needed to help the new seal seat evenly. Confirm the vehicle position and transmission or axle configuration listed in the fitment data before ordering or installing National 710642.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop designs for modern vehicle service needs. Part number 710642 is built as an oil seal using nitrile material and metric dimensions for consistent replacement fitment.