FAG SS2577 Wheel Seal

FAG SS2577 Wheel Seal Overview

FAG SS2577 is a wheel seal built for rear axle and rear inner applications where bearing protection and grease retention matter. It is engineered with a metal case, spring, and auxiliary lip design, plus nitrile sealing material for dependable sealing performance in demanding driveline service.

Compatible With a wide range of Jeep, Ford, Lincoln, Mercury, Chevrolet, Buick, Oldsmobile, and Dodge rear axle applications, this seal is specified by bore and outside diameter for accurate service replacement. The FAG SS2577 wheel seal measures 2.502 in. bore diameter, 2.506 in. outside diameter, and 1.5 in. width.

Key Features

• Wheel seal for rear, rear inner, and rear center positions
• Metal case with spring and auxiliary lip sealing design
• Nitrile sealing material for grease retention and contamination control
• 2.502 in. bore diameter, 2.506 in. outside diameter, 1.5 in. width
• Cross-references National 473228 and SKF 15142 for the same application
• Fits many Jeep Cherokee, Jeep Wagoneer, Ford F-100, and Ford Bronco rear axle applications

Detailed Description

The FAG SS2577 is a precision wheel seal designed to protect wheel-end components from dirt, dust, and moisture while helping keep grease inside the bearing assembly. Its metal, spring-loaded, auxiliary-lip construction is suited to the demanding requirements of axle and wheel-end service, where seal dimensions and material selection must match the vehicle application exactly. This part number, SS2577, is used across numerous rear axle configurations, including AMC large axle Jeep applications, Spicer 44 and 60 axle setups, and several Ford passenger and truck platforms.

Vehicle coverage includes rear inner applications on 1986-1987 Jeep Cherokee, Comanche, and Wagoneer; 1953-1980 Ford F-100; 1966-1977 Ford Bronco; and 1975-1979 Ford F-150 rear inner service. It also appears in rear applications for 1978-1979 Lincoln Continental, 1975-1978 Mercury Monarch, and 1968-1972 Chevrolet C10 Suburban and K10 Suburban. The FAG SS2577 part number is a direct reference point when matching seal dimensions and axle configuration.

What This Wheel Seal Helps Address

• Grease loss at the wheel end
• Contamination from dirt, dust, and moisture
• Seal wear in rear axle service
• Incorrect seal sizing during axle repair
• Noise or bearing damage related to poor wheel-end sealing

Installation Notes and Tips

Verify bore diameter, outside diameter, width, axle type, and position before installation. This seal is listed for rear, rear inner, and rear center locations depending on the vehicle, so match the exact fitment notes for your application. Confirm the axle family and brake or bearing configuration on Jeep Cherokee, Ford F-100, and Ford Bronco models before ordering.

Quality Assurance

FAG states that its wheel seals are built from high-quality materials and developed to meet vehicle manufacturer specifications. The SS2577 is produced to support the sealing demands of wheel-end service and to maintain consistent protection over the life of the bearing.