National 712009 Engine Oil Pump Seal

Engine Oil Pump Seal for Honda and Acura

National 712009 is an engine oil pump seal built for metric applications that require a precise sealing fit. It uses silicone sealing material and a counter-clockwise spiral lip design to support consistent sealing at the oil pump interface on select Honda, Acura, and Isuzu vehicles.

Compatible With 1990-2002 Honda Accord, 1992-2001 Honda Prelude, 1997-1999 Acura CL, 1996-1999 Isuzu Oasis, and 1995-1998 Honda Odyssey. National 712009 is a direct-fit oil seal for applications that match the listed shaft and housing dimensions.

Key Features

• Part number: 712009
• Engine oil pump seal / oil seal
• Silicone sealing material
• Counter-clockwise spiral lip design
• Metric dimensions for accurate fitment
• Inside diameter: 1.063 in. / 27.000 mm
• Outside diameter: 1.583 in. / 40.200 mm
• Thickness: 0.315 in. / 8.000 mm
• Housing bore: 1.575 in. / 40.000 mm

Detailed Description

National 712009 is engineered as an engine oil pump seal for vehicles that use a 27 mm shaft and a 40 mm housing bore. The silicone sealing material and counter-clockwise spiral lip design are specified to maintain a controlled seal at the pump interface, helping support proper oil retention in the engine sealing system. This part is listed for Honda Accord, Honda Prelude, Acura CL, Isuzu Oasis, and Honda Odyssey applications within the confirmed year ranges.

This part cross-references Continental 67031 for the same application.

What It Is Used For

• Oil seepage at the engine oil pump seal area
• Loss of sealing at the pump shaft interface
• Replacement of a worn or hardened oil seal
• Service on Honda Accord, Honda Prelude, Acura CL, Isuzu Oasis, or Honda Odyssey oil pump assemblies

Installation Notes and Tips

Verify the shaft diameter, housing bore, and seal width before installation. Clean the sealing surfaces thoroughly and inspect the pump shaft for wear, scoring, or corrosion that could affect seal life. Confirm the seal orientation matches the counter-clockwise spiral lip design before pressing it into place.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop sealing components for modern vehicle applications. Part 712009 reflects that focus on dimensional accuracy and application-specific sealing performance.