National 1953 Engine Crankshaft Seal - Front, Front Outer or Rear Inner

National 1953 Engine Crankshaft Seal

National 1953 is a metric engine crankshaft oil seal built for front outer and rear inner applications on select Honda, Geo, and Isuzu vehicles. It uses a polyacrylate sealing material with a clockwise-spiral lip design to help maintain a consistent seal at the crankshaft.

National has supplied sealing solutions for more than 75 years, and this 1953 oil seal reflects that focus on dimensional accuracy and modern sealing design. It is a direct-fit option for applications such as 1973-1979 Honda Civic rear inner, 1976-1981 Honda Accord rear inner, 1990-1993 Geo Storm front outer, and 1990-1992 Isuzu Impulse front outer.

Key Features

• Part number 1953 engine crankshaft seal
• Metric dimensions: 42.000 mm shaft ID, 60.220 mm outside diameter, 7.000 mm width
• Polyacrylate sealing material for engine oil sealing applications
• Clockwise-spiral lip design for crankshaft sealing performance
• Redicoat finish
• National Series 1000 oil seal
• Cross-reference: Timken 1953S

Detailed Description

National 1953 is an engine crankshaft seal engineered to match the listed housing bore and shaft dimensions for the specified applications. The seal measures 1.654 inches (42.000 mm) inside diameter, 2.371 inches (60.220 mm) outside diameter, and 0.276 inches (7.000 mm) thick, making it a metric oil seal suited to crankshaft sealing service. Its polyacrylate material and spiral-lip construction are used to support stable sealing at rotating shaft interfaces.

Compatible With 1973-1979 Honda Civic, rear inner; 1976-1981 Honda Accord, rear inner; 1990-1993 Geo Storm, front outer; 1990-1992 Isuzu Impulse, front outer; and 1991-1993 Isuzu Stylus, front outer except Lotus Suspension. National 1953 is a practical replacement choice when servicing crankshaft oil leaks on these vehicles.

What It Helps Address

• Engine oil leakage at the crankshaft seal area
• Oil seepage from worn rear inner or front outer seal locations
• Seal wear caused by age, heat, and shaft rotation
• Loss of sealing integrity during engine service or rebuild work
• Fitment issues when replacing a metric crankshaft oil seal with the correct dimensions

Installation Notes and Tips

Verify shaft diameter, housing bore, and seal width before installation. Clean the sealing surface thoroughly and inspect the crankshaft for grooves or damage that could affect sealing. Install the seal squarely to avoid lip distortion, and confirm the clockwise-spiral lip orientation matches the application.

For fitment-specific service, confirm the vehicle position listed for your application: Honda Civic rear inner, Honda Accord rear inner, Geo Storm front outer, Isuzu Impulse front outer, or Isuzu Stylus front outer except Lotus Suspension.

Quality Assurance

National has a long history in sealing technology and continues to develop sealing solutions for current vehicle service needs. Part number 1953 is built to the listed metric specifications and application fitment for dependable replacement use.