Timken 515020 Wheel Bearing and Hub Assembly - Front

Timken 515020 Front Hub Assembly

Timken 515020 is a front wheel bearing and hub assembly for select Ford Super Duty and Excursion applications. Built for driven front axle use, it combines precision bearing geometry, low runout, and integrated ABS sensing to support stable braking and reduced noise and vibration.

Key Features

• Front wheel bearing and hub assembly for driven applications
• 55-spline design with 8 wheel studs and 4 flange bolt holes
• Low runout construction to reduce noise and vibration
• Premium seals with reinforced outer case and contamination exclusion features
• Precision-profile bearings with enhanced surface finishes for load capacity and bearing life
• ABS sensor is 100% tested for wheel speed monitoring

Detailed Description

Timken 515020 is engineered for the front of 1999-2005 Ford Excursion, Ford F-250 Super Duty, and Ford F-350 Super Duty models listed below. It uses OE-developed testing to control design, materials, and manufacturing processes, helping maintain consistent performance in demanding driveline and axle service. The hub assembly’s low runout helps reduce brake pulsation, noise, and vibration, while the precision bearing design supports load carrying capacity and fuel efficiency. This part cross-references SKF BR930420 for the same application.

Compatible fitment includes Fits 2000-2005 Ford Excursion, Front; Fits 2000-2004 Ford F-250 Super Duty, Front; Fits 2000-2004 Ford F-350 Super Duty, Front, Single Rear Wheels - Coarse Thread Studs; Fits 1999 Ford F-250 Super Duty, Front, Coarse Thread Studs - From 03/22/1999; and Fits 1999 Ford F-350 Super Duty, Front, Single Rear Wheels - Coarse Thread Studs - From 3/22/1999. Timken 515020 is a direct-fit option for Ford F-250 Super Duty and Ford F-350 Super Duty front hub service where the listed coarse-thread configuration applies.

Common Problems This Part Addresses

• Front wheel bearing noise or growling
• Excessive hub play or looseness
• Brake vibration related to hub runout
• ABS wheel speed signal faults from a worn hub sensor assembly
• Seal wear that allows contamination into the bearing area

Installation Notes and Tips

Verify the vehicle’s front axle configuration, wheel stud thread type, and model-year breakpoints before installation. Confirm the hub pilot, brake pilot, bolt circle diameter, and spline count match the original part. Clean the mounting surface thoroughly and inspect related components such as the axle shaft, knuckle, and brake hardware for wear before installing the new hub assembly.

Quality Assurance

Timken uses OE-developed testing to control the design, materials, and manufacturing process of its hub bearing assemblies. The ABS sensor is 100% tested, and the bearing and seal design is built around precision geometry, contamination control, and consistent performance.