Moog 515021 Wheel Bearing and Hub Assembly - Front

Front Wheel Bearing Hub Assembly for Ford Super Duty

The MOOG 515021 wheel bearing and hub assembly is built for front-end service on select Ford Super Duty trucks. It combines precise hub dimensions with MOOG materials and testing standards to support reliable wheel mounting and smooth driveline operation.

Compatible with 1999-2001 Ford F-250 Super Duty and 1999-2001 Ford F-350 Super Duty front applications without dual rear wheels, this hub assembly is a direct-fit service part for the specified configurations. The MOOG 515021 is also a practical choice when replacing a worn front hub on Ford F-250 Super Duty and Ford F-350 Super Duty trucks.

Key Features

• Wheel bearing and hub assembly for front axle service
• 55-spline hub design
• 8 wheel studs and 4 flange bolt holes
• Modified circle flange shape with 7.990 flange diameter
• Wheel pilot diameter and brake pilot diameter both measure 4.920
• Hub pilot diameter measures 3.330
• Flange offset measures 2.160
• Anti-lock brake sensor not included
• Built with MOOG materials and tested for dependable performance

Detailed Description

MOOG part number 515021 is a front wheel bearing and hub assembly engineered for select 1999-2001 Ford F-250 Super Duty and Ford F-350 Super Duty trucks without dual rear wheels. Fitment also includes 1999 models built from 03/08/1999 with a 13 mm thick hub flange. Key dimensions such as the 170.000 bolt circle diameter, 4.920 wheel and brake pilot diameters, and 3.330 hub pilot diameter help support accurate installation and proper wheel interface.

This part cross-references SKF BR930424 for the same application. If you are replacing a noisy, loose, or uneven front hub on a Ford Super Duty, MOOG 515021 provides a service-ready replacement built around application-specific dimensions and installation-focused design.

What It Helps Fix

• Front wheel bearing noise or growling
• Excessive wheel play or hub looseness
• Vibration from a worn front hub assembly
• Uneven wheel mounting caused by hub wear
• Service issues on Ford F-250 Super Duty and Ford F-350 Super Duty front hubs

Installation Notes and Tips

Verify axle configuration, dual rear wheel status, and 1999 hub flange thickness before ordering. Confirm the 55-spline hub design, 8-stud wheel pattern, and 170.000 bolt circle diameter against the original part. Because the anti-lock brake sensor is not included, transfer or source the sensor separately if your vehicle setup requires one.

For best results, inspect the mating surfaces, wheel studs, and brake components during installation. This helps ensure the new hub seats correctly and supports proper front-end service on the Ford F-250 Super Duty or Ford F-350 Super Duty.

Quality Assurance

MOOG hub assemblies are backed by material standards and testing procedures intended to support consistent fit and dependable service. The brand’s problem-solving approach focuses on reducing installation friction and helping technicians complete the repair with fewer complications.