Timken 515025 Wheel Bearing and Hub Assembly - Front

Timken 515025 Front Hub Assembly

Timken 515025 is a driven wheel bearing and hub assembly built for front axle service on select Ford Super Duty applications. It combines OE-developed testing, precision bearing geometry, and sealing features that support stable wheel-speed performance, reduced noise, and consistent braking feel.

• Driven front wheel bearing and hub assembly for select Ford F-350 Super Duty models
• Low runout design helps reduce wheel-end noise and vibration
• Premium seals use reinforced and contamination-resistant features to support seal life
• Precision bearing profiles and enhanced surface finishes support load capacity and bearing life
• ABS sensor is 100% tested for wheel-speed monitoring
• 8 wheel studs, 4 flange bolt holes, and 6.693 in. bolt circle diameter

Fitment Details

Compatible with 2000-2004 Ford F-350 Super Duty, front, and 1999 Ford F-350 Super Duty, front, dual rear wheels from 3/22/1999. This Timken 515025 hub assembly is also cross-referenced to SKF BR930421 for the same application.

Built for Wheel-End Stability

This hub assembly is engineered around OE-developed validation methods that control the design, materials, and manufacturing process. For Ford F-350 Super Duty front-end service, the Timken 515025 helps maintain proper wheel support with a hub pilot diameter of 4.484 in., wheel pilot diameter of 4.920 in., brake pilot diameter of 5.079 in., and flange offset of 54.50 mm. The driven design, 55-spline count, and integrated ABS sensor support accurate wheel-speed signal monitoring while the bearing package is built to handle demanding truck use.

What It Helps Address

• Front wheel bearing noise
• Wheel-end vibration or runout-related shake
• ABS warning light concerns tied to wheel-speed signal issues
• Uneven braking feel caused by hub instability
• Premature bearing wear from contamination or seal failure

Installation Notes

Verify front axle configuration, dual rear wheel application, spline count, bolt circle diameter, and pilot dimensions before installation. Confirm the vehicle is a 1999-2004 Ford F-350 Super Duty with the listed front fitment, including the 1999 dual rear wheel build date note. Inspect the mating surfaces, axle components, and ABS connector condition during replacement to support proper hub seating and sensor operation.

Quality Assurance

Timken manufactures this hub assembly using OE-developed test procedures and controlled materials and processes. The bearing design, seal construction, and ABS sensor testing are all focused on consistent performance in demanding driveline service.