FAG SS3628 Axle Spindle Seal - Front

Axle Spindle Seal for Heavy-Duty Front Ends

The FAG SS3628 axle spindle seal is built for front wheel-end service where contamination control matters. It is a rubber seal with nitrile sealing material, sized for a 1.875-inch bore and 1.5-inch width to help maintain grease retention and keep dirt, dust, and moisture out of the bearing area.

Use this seal when servicing front inner wheel-end applications on Ford F-250, Ford F-350, Dodge W200/W300/W250/W350, Chevrolet K30/K3500/K3500, Chevrolet V30/V3500, and GMC V3500 front axle assemblies listed below.

Key Features

• FAG axle spindle seal, part number SS3628
• Rubber seal type with nitrile sealing material
• 1.875-inch bore diameter and 1.875-inch outside diameter
• 1.5-inch seal width for front wheel-end sealing applications
• Helps protect bearing components from dirt, dust, and moisture
• Supports grease retention over the service life of the bearing
• Cross-references National 710044 and SKF 711822 for the same application

Detailed Description

FAG SS3628 is an axle spindle seal engineered to meet vehicle-specific sealing requirements for demanding front axle service. The nitrile sealing material is selected for wheel-end environments where exposure to road contamination and lubricant loss can shorten bearing life. With a 47.625 mm bore/outside diameter and 38.1 mm width, this seal is sized for the listed applications and is commonly used on heavy-duty front inner positions.

Compatible With 1973-1998 Ford F-250 front inner applications, 1979-1991 Ford F-350 front applications, 1975-1979 Dodge W200 and W300 front inner applications, 1986-1993 Dodge W250 and W350 front applications, 1977-1986 Chevrolet K30 front applications, 1979-1986 GMC K3500 front applications, 1987-1988 Chevrolet V30 front applications, 1989-1991 Chevrolet V3500 front applications, and 1987-1991 GMC V3500 front applications. FAG SS3628 is also listed for 1988-1991 Chevrolet K3500 front inner service.

What It Helps Address

• Grease leakage at the wheel end
• Contamination from dirt, dust, and moisture
• Premature bearing wear from poor sealing
• Front axle service issues on heavy-duty trucks
• Seal replacement during hub and bearing maintenance

Installation Notes and Tips

Verify the axle, position, and seal dimensions before installation. Match the seal to the specific front inner or front application shown in the fitment data, especially on Spicer 50 and 60 axle setups noted for several Ford and Dodge trucks. Inspect the spindle, hub, and bearing surfaces for wear or scoring before installing the new seal.

Quality Assurance

FAG designs wheel seals using high-quality materials and works with suppliers to meet manufacturer specifications and FAG quality standards. The seal is engineered for demanding wheel-end service where contamination control and grease retention are critical.