Timken HA590007 Wheel Bearing and Hub Assembly - Front Left

Timken HA590007 Wheel Bearing Hub Assembly

The Timken HA590007 wheel bearing and hub assembly is built for the front left position on select Pontiac GTO models. It combines OE-developed design controls with precision bearing construction to support smooth wheel rotation, reduced noise, and stable braking performance.

Key Features

• Direct-fit wheel bearing and hub assembly for the front left side
• Non-driven hub design for the specified application
• 5 wheel studs with a 4.724 in. bolt circle diameter
• 69.50 mm wheel pilot diameter and 71.50 mm brake pilot diameter
• 76.00 mm hub pilot diameter and 43.00 mm flange offset
• Low runout construction to reduce vibration and wheel-end noise
• Precision bearing geometry and enhanced surface finish for load support and service life
• ABS sensor monitoring is 100% tested for wheel speed signal performance

Detailed Description

Timken HA590007 is a front left wheel bearing and hub assembly engineered for 2004-2006 Pontiac GTO models. It is built with premium seals, reinforced contamination control features, and precision-profile bearings to help maintain consistent wheel-end operation. The hub’s OE-focused design process supports accurate fitment, while the low-runout construction helps improve ride quality and braking feel. This part cross-references SKF BR930373 for the same application.

For buyers searching for a Pontiac GTO front left wheel hub assembly, Timken HA590007 provides the dimensional details needed for a proper replacement: 3 flange bolt holes, 5 wheel studs, 120.00 mm bolt circle diameter, and the listed pilot and flange measurements. If you need a Timken HA590007 replacement for a 2004 Pontiac GTO, 2005 Pontiac GTO, or 2006 Pontiac GTO, verify the position and hub dimensions against the original unit before installation.

Common Issues This Part Can Address

• Wheel-end noise from a worn bearing assembly
• Vibration or runout felt through the steering or chassis
• ABS warning concerns related to wheel speed signal loss
• Loose or rough hub rotation from bearing wear
• Brake feel changes caused by hub instability

Installation Notes and Tips

Confirm the vehicle is a 2004-2006 Pontiac GTO, front left application before ordering. Compare the original hub’s pilot diameters, flange offset, bolt circle, and stud pattern to the Timken HA590007 specifications. Clean the mounting surface thoroughly and inspect related suspension and brake components for wear before installing the new hub assembly.

Quality Assurance

Timken uses OE-developed testing and controlled manufacturing processes for hub bearing assemblies. The design emphasizes low runout, precision internal geometry, and tested ABS sensor performance to support consistent wheel-end operation.