National 320595 Engine Camshaft Seal

Engine Camshaft Seal for Honda and Acura

National 320595 is an engine camshaft seal built for metric applications that need a precise sealing surface and stable lip contact. It is a direct-fit oil seal for select Honda Civic, Civic del Sol, CRX, Prelude, Accord, and Acura EL applications across the listed model years.

Key Features

• Silicone construction for sealing performance in engine environments
• Counter-clockwise spiral lip design to support controlled oil sealing at the camshaft
• Metric dimensions: 29.000 mm shaft inside diameter, 45.230 mm outside diameter, and 8.000 mm width
• Housing bore size: 45.000 mm
• Part description: oil seal
• National 320595 and series 320000 identification for catalog matching

Detailed Description

National 320595 is an engine camshaft seal engineered for vehicles that require a metric oil seal with a 29.000 mm shaft diameter and 45.230 mm outside diameter. The silicone sealing material and counter-clockwise spiral lip design help maintain consistent contact at the camshaft area, where oil control is critical to engine cleanliness and reliable operation. This part number is commonly searched for Honda Civic camshaft seal replacement, Honda Accord engine oil seal service, and Acura EL camshaft seal applications. National 320595 also cross-references MAHLE 67604 for the same application.

Vehicle Fitment

• Fits 1997-2005 Acura EL, N/A
• Fits 1975-2005 Honda Civic, N/A
• Fits 1993-1997 Honda Civic del Sol, N/A
• Fits 1988-1991 Honda CRX, N/A
• Fits 1983-1990 Honda Prelude, N/A
• Fits 1984-1989 Honda Accord, N/A

Common Repair Uses

• Oil seepage at the camshaft seal area
• Visible engine oil residue around the timing side of the engine
• Seal wear from age, heat, and mileage
• Maintenance during camshaft or timing service
• Restoring proper oil control in Honda Civic and Acura EL engines

Installation Notes and Tips

Verify the shaft diameter, housing bore, and seal width before installation to confirm the correct fit. Inspect the camshaft surface for wear or scoring, and clean the bore thoroughly so the seal seats evenly. Proper alignment during installation helps prevent lip damage and early leakage.

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 320595 reflects that long-running focus on engine sealing performance and catalog accuracy.