National 1993 Wheel Seal - Front Inner or Rear Inner

National 1993 Wheel Seal for Front Inner and Rear Inner Applications

National 1993 is a metric wheel seal built for select Toyota, Chevrolet, and Geo applications that use a 56.000 mm shaft and a 73.000 mm housing bore. It is an oil seal made from nitrile, with a 12.500 mm width and a 73.280 mm outside diameter for precise sealing performance.

Key Features

• Part number: National 1993
• Wheel seal / oil seal for driveline and axle sealing applications
• Nitrile sealing material for dependable fluid control
• Metric dimensions: 56.000 mm inside diameter, 73.000 mm housing bore
• 73.280 mm outside diameter and 12.500 mm width
• Fits front inner and rear inner positions on listed vehicles
• Cross-reference example: Beck/Arnley 052-3437

Detailed Description

National 1993 is part of National’s 1000 series sealing line and is engineered for vehicles that require a metric wheel seal with a 56.000 mm shaft diameter. The nitrile construction supports sealing at the hub or axle interface, while the 73.280 mm outside diameter and 12.500 mm width help ensure a proper fit in the housing bore. This part number is used across applications such as 1988-2002 Toyota Corolla front inner, 1987-1989 Toyota MR2 rear inner, 1998-2002 Chevrolet Prizm front inner, and 1989-1997 Geo Prizm front inner. If you are replacing a worn wheel seal on a Toyota Corolla, Toyota MR2, Chevrolet Prizm, or Geo Prizm, National 1993 provides the dimensional match needed for the job.

Common Problems This Seal Can Address

• Gear oil or lubricant leakage at the wheel end
• Contamination entering the hub or axle sealing area
• Noise or wear caused by a deteriorated seal lip
• Seal fit issues when replacing an incorrect metric size
• Maintenance on front inner or rear inner wheel seal locations

Installation Notes and Tips

Verify the shaft, housing bore, outside diameter, and width before installation. Clean the sealing surface and inspect the hub or axle area for wear, scoring, or corrosion that could affect seal life. Confirm the vehicle position matches the application listing before ordering. For fitment, this part fits 1988-2002 Toyota Corolla, front inner; fits 1987-1989 Toyota MR2, rear inner; fits 1998-2002 Chevrolet Prizm, front inner; and fits 1989-1997 Geo Prizm, front inner.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop sealing components for modern vehicle service needs. Part number 1993 is built to meet the dimensional requirements of the listed applications and is backed by National’s long-standing sealing expertise.