National 239146 Wheel Seal

National 239146 Wheel Seal Overview

National 239146 is a metric wheel seal built with nitrile sealing material for dependable sealing performance in driveline and axle applications. With a 1.496 in shaft diameter, 2.138 in outside diameter, and 0.276 in width, it is sized for specific rear and left-side applications across BMW, Audi, Honda, Acura, and Volkswagen vehicles.

This National 239146 wheel seal is a direct-fit sealing component for vehicles using the listed differential or transmission configurations, including BMW 168K and 168N differentials and Audi 089 or VW 090 transmissions. It is also a common search match for BMW 320i rear wheel seal, BMW 318i rear axle seal, and Audi 80 rear transmission seal replacement needs.

• Brand: National
• Part number: 239146
• Part description: Oil seal / wheel seal
• Sealing material: Nitrile
• Metric dimensions for accurate fitment
• Inside diameter: 1.496 in / 38.000 mm
• Outside diameter: 2.138 in / 54.300 mm
• Housing bore: 2.126 in / 54.000 mm
• Width: 0.276 in / 7.000 mm
• Series: 230000

Fitment Details

• Fits 2001-2005 BMW 320i, Rear, with 6.6142 in ring gear; with BMW 168K differential
• Fits 1996-2002 BMW Z3, Rear, with 6.6142 in ring gear; with BMW 168N differential
• Fits 1991-1999 BMW 318i, Rear, with 6.6142 in ring gear; with BMW 168N differential
• Fits 1991-1999 BMW 318is, Rear, with 6.6142 in ring gear; with BMW 168N differential
• Fits 1995-1999 BMW 318ti, Rear, with 6.6142 in ring gear; with BMW 168N differential
• Fits 1993-1995 BMW 320i, Rear, with 6.6142 in ring gear; with BMW 168N differential
• Fits 1988-1992 Audi 80, Rear, with Audi 089 transmission
• Fits 1980-1991 Volkswagen Vanagon, Rear, with VW 090 transmission
• Fits 1986-1989 Acura Integra, Left
• Fits 1988-1989 Audi 90, Rear, with Audi 089 transmission
• Fits 1984-1989 Honda Accord, Left
• Fits 1985-1989 Honda Prelude, Left
• Fits 1980-1987 Audi 4000, Rear, with Audi 089 transmission
• Fits 1984-1985 BMW 318i, Rear, with 6.6142 in ring gear; with BMW 168 differential
• Fits 1982-1985 Volkswagen Quantum, Rear, with Audi 089 transmission
• Fits 1977-1983 BMW 320i, Rear, with 6.6142 in ring gear; with BMW 168 differential

What This Seal Helps Address

• Gear oil seepage at the rear differential or transmission seal area
• Contamination entering the sealed hub or axle interface
• Fluid loss that can lead to noisy or dry driveline operation
• Wear-related leakage on older BMW, Audi, Honda, Acura, and Volkswagen applications
• Replacement needs during axle, differential, or transmission service

Installation Notes

Verify shaft, housing bore, and width measurements before installation to confirm the seal matches the application. Clean the sealing surface thoroughly, inspect the shaft or axle for grooves or damage, and install the seal squarely to avoid distortion. For BMW 320i, BMW 318i, Audi 80, and Volkswagen Vanagon applications, confirm the differential or transmission configuration listed in the fitment notes before ordering.

This part cross-references SKF 14691 and Beck/Arnley 052-3481 for the same application.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop sealing components for modern and legacy vehicles. Part number 239146 is built to metric specifications and uses nitrile sealing material for consistent sealing performance in the listed applications.