National 8549S Wheel Seal - Rear Outer

National 8549S Wheel Seal for Jeep Rear Outer Applications

National 8549S is a wheel seal built for rear outer axle service on select Jeep CJ and Wagoneer applications. It uses nitrile sealing material and OE-style dimensions to support a proper seal at the shaft and housing interface.

Key Features

• Part number: National 8549S
• Wheel seal / oil seal for driveline and axle sealing service
• Nitrile construction for sealing performance in axle applications
• Inside diameter: 1.360 in. / 34.530 mm
• Outside diameter: 2.328 in. / 59.130 mm
• Flanged outside diameter and housing bore: 4.560 in. / 115.800 mm
• Overall width with side lip: 0.492 in. / 12.500 mm
• Width: 0.323 in. / 8.200 mm
• Series 8000 seal design

Detailed Description

National 8549S is a rear outer wheel seal designed for axle sealing service where the shaft diameter and housing bore must match the specified dimensions. It fits 1976-1986 Jeep CJ7, rear outer; 1984-1985 Jeep Grand Wagoneer, rear outer with AMC 20 axle; 1981-1985 Jeep Scrambler, rear outer; and 1976-1983 Jeep CJ5, rear outer. This part cross-references Bosch 13508 for the same application. National 8549S is a practical replacement choice when servicing Jeep CJ5, CJ7, Scrambler, or Grand Wagoneer rear axle sealing points.

Common Uses

• Replacing a leaking rear outer axle seal
• Restoring sealing at the wheel end of the axle
• Addressing gear oil seepage near the rear axle housing
• Correcting contamination from a worn or hardened seal lip
• Servicing Jeep CJ5, CJ7, Scrambler, and Grand Wagoneer rear axle assemblies

Installation Notes and Tips

Verify shaft diameter, housing bore, and seal width before installation. Clean the bore and shaft surface thoroughly, and inspect for grooves, corrosion, or wear that can affect sealing. Confirm rear outer placement and, on 1984-1985 Jeep Grand Wagoneer applications, verify the AMC 20 axle configuration before ordering National 8549S.

Quality Assurance

National has supplied sealing solutions for more than 75 years and continues to develop sealing components for modern vehicle service needs. The 8549S reflects that focus with application-specific dimensions and nitrile material selection for axle sealing use.