FAG SS2504 Axle Spindle Seal - Front Inner

Axle Spindle Seal for Ford Front Inner Applications

The FAG SS2504 axle spindle seal is built for front inner wheel-end service on select Ford trucks. It uses a metal and spring seal design with nitrile sealing material to help keep contamination out and grease in at the bearing.

Key Features

• Axle spindle seal for wheel-end sealing applications
• Metal and spring seal type for stable sealing performance
• Nitrile sealing material for resistance in demanding driveline environments
• Bore diameter: 2.509 in. (63.729 mm)
• Seal outside diameter: 2.514 in. (63.856 mm)
• Seal width: 1.475 in. (37.465 mm)
• Direct reference part number: SS2504

Detailed Description

FAG SS2504 is a wheel-end axle spindle seal engineered to meet vehicle manufacturer specifications for the listed Ford front inner applications. The seal is designed to protect wheel end components from dirt, dust, and moisture while helping prevent grease loss over the life of the bearing. This part cross-references National 710414 and SKF 14634 for the same application. It is a direct-fit service part for 1992-1998 Ford F-250 front inner and 1992-1997 Ford F-350 front inner applications, including the 4600 lb axle weight note listed for the F-250 fitment.

What It Helps Address

• Grease leakage at the wheel end
• Contamination from dirt, dust, and moisture
• Premature wear in spindle and bearing areas
• Seal replacement during front axle service
• Fitment-specific repair needs on Ford F-250 and Ford F-350 front inner positions

Installation Notes and Tips

Verify bore diameter, seal outside diameter, and seal width before installation. Confirm the front inner position and match the vehicle application exactly, especially on 1992-1998 Ford F-250 and 1992-1997 Ford F-350 models. Inspect the spindle, hub, and bearing surfaces for wear or damage before installing the new seal.

Quality Assurance

FAG designs wheel seals using high-quality materials and application-specific specifications to meet demanding wheel-end requirements. The SS2504 follows those standards for the listed Ford truck applications and is engineered for long-term sealing performance in driveline service.