National 473179 Wheel Seal - Rear Outer

Wheel Seal for Rear Outer Applications

The National 473179 wheel seal is built for rear outer service on a range of Isuzu, Acura, Chevrolet, and Ford applications. It uses nitrile sealing material and a Redi-Coat finish to support consistent sealing performance in driveline and axle service.

• National wheel seal, part number 473179
• Nitrile sealing material for oil sealing applications
• Redi-Coat finish
• Type 47 design with 1.875 in. shaft diameter and 2.762 in. outside diameter
• 0.375 in. width for the specified housing bore dimensions
• Zero duplication part designation

Fitment and Application Details

This seal is listed for rear outer positions on 1988-2002 Isuzu Trooper, 1999-2001 Isuzu VehiCROSS, 1996-1999 Acura SLX, 1988-1995 Isuzu Pickup, 1989-1994 Isuzu Amigo, 1987 Isuzu Trooper from 07/01/1987, and 1975-1982 Chevrolet LUV. It also fits 1966-1976 Ford Bronco with Spicer 20 transfer case, part-time 4WD, 2-speed configuration, and 1966-1972 Ford F-100 with full-time 4WD and Spicer 21 axle, 1-speed.

National has supplied sealing solutions for more than 75 years, and this part reflects that focus on dimensional accuracy and modern vehicle service needs. The 473179 wheel seal is specified with 47.630 mm shaft diameter, 70.150 mm outside diameter, and 9.530 mm width for applications that require a precise axle or hub seal match.

Common Problems This Seal Addresses

• Gear oil leakage at the rear outer wheel seal area
• Contamination entering the hub or axle seal zone
• Worn or hardened sealing surfaces on older driveline assemblies
• Seal replacement during axle, hub, or differential service
• Fitment matching for Isuzu Trooper, Acura SLX, and related applications

Installation Notes and Tips

Verify shaft diameter, housing bore, and width before installation to confirm the seal matches the application. Inspect the sealing surface for wear, scoring, or corrosion, and clean the bore thoroughly so the nitrile lip can seat evenly. For Ford Bronco and Ford F-100 applications, confirm the axle or transfer case configuration listed in the fitment notes before ordering.

Quality Assurance

National designs sealing products for current and legacy vehicles, using application-specific dimensions and materials to support reliable service. Part number 473179 is a direct-fit wheel seal listing for the confirmed rear outer and driveline applications shown above.