National 712008 Engine Camshaft Seal

National 712008 Camshaft Seal Overview

National 712008 is an engine camshaft seal built for metric applications that require a precise sealing surface around a 28.000 mm shaft. Made from silicone, this oil seal measures 42.200 mm outside diameter and 8.000 mm width to support a secure fit in the housing bore.

Compatible With 1990-2002 Honda Accord, 1997-1999 Acura CL, 1996-1999 Isuzu Oasis, 1995-1998 Honda Odyssey, and 1992-1996 Honda Prelude. This part number, 712008, is also a direct reference point for shoppers comparing OE-style sealing solutions for these vehicles.

Key Features

• Engine camshaft seal / oil seal for sealing the camshaft area
• Silicone construction for sealing performance in engine environments
• Metric dimensions: 28.000 mm shaft, 42.000 mm housing bore, 8.000 mm width
• Outside diameter: 42.200 mm for proper housing engagement
• National Series 712000, Part Number 712008
• Cross-reference example: MAHLE 67032 for the same application

Detailed Description

National 712008 is part of National’s sealing lineup, backed by more than 75 years of sealing-system experience. The design reflects current vehicle requirements and focuses on accurate dimensional control for engine sealing service. For Honda Accord, Honda Odyssey, Honda Prelude, Acura CL, and Isuzu Oasis applications, this camshaft seal helps maintain the sealing interface between the camshaft and housing bore.

The seal’s metric sizing and silicone material make it a practical choice when replacing a worn camshaft seal during engine service. Use National 712008 when the application calls for a 28.000 mm shaft diameter and 42.200 mm outside diameter.

Common Problems This Part Addresses

• Oil seepage at the camshaft seal area
• Visible engine oil residue around the timing or camshaft housing
• Seal hardening or wear from age and heat cycling
• Loss of sealing integrity after engine disassembly service
• Leak-related contamination of surrounding engine components

Installation Notes and Tips

Confirm shaft diameter, housing bore, and seal width before installation. Inspect the camshaft surface and housing for scoring, corrosion, or debris that could affect sealing. Clean the bore thoroughly and install the seal squarely to avoid distortion. Verify that the seal lip seats evenly after assembly.

Quality Assurance

National is a long-established sealing brand with a focus on premium sealing solutions for automotive service. Part number 712008 is engineered to meet the dimensional requirements of the listed Honda, Acura, and Isuzu applications.