InMotion WA512309 Wheel Bearing and Hub Assembly - Rear

Rear Wheel Bearing Hub Assembly for GM Minivans

The InMotion WA512309 rear wheel bearing and hub assembly is built for direct replacement service on select GM minivans. Engineered from OE data and measurements, it is made to match the original fit, mounting points, and operating dimensions for dependable rear-wheel service.

Compatible with 2006-2009 Chevrolet Uplander rear, 2006-2009 Pontiac Montana rear, 2006-2007 Buick Terraza rear, and 2006-2007 Saturn Relay rear, this hub assembly is a practical choice when replacing a worn or noisy rear hub. The WA512309 is also identified by part number WA512309 for application matching.

Key Features

• Rear wheel bearing and hub assembly for select Chevrolet, Pontiac, Buick, and Saturn vehicles
• Direct replacement design based on OE data and measurements
• 6 wheel studs with 4 flange bolt holes
• ABS sensor included
• Wheel pilot diameter: 70.1 mm
• Brake pilot diameter: 70.6 mm
• Hub pilot diameter: 71.8 mm
• Flange diameter: 150.3 mm
• Bolt circle diameter: 115.0 mm
• Flange offset: 64.9 mm

Detailed Description

InMotion WA512309 is a rear hub assembly engineered for precise fitment on the listed GM platforms. It is manufactured with strict quality-control criteria and built to the dimensional requirements of the original part, helping ensure proper wheel mounting, brake interface alignment, and sensor integration. For shoppers searching for a rear wheel bearing hub assembly for Chevrolet Uplander, Pontiac Montana, Buick Terraza, or Saturn Relay, this unit provides a direct-replacement solution for the rear position.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Rear wheel bearing noise or rough rotation
• Excessive wheel play or looseness at the hub
• ABS warning light concerns related to the wheel speed sensor circuit
• Uneven wheel mounting caused by hub wear
• Brake and wheel fitment issues tied to a worn rear hub assembly

Installation Notes and Tips

Confirm rear-position fitment before ordering and verify the vehicle’s year, make, and model against the listed applications. Compare the flange bolt hole count, wheel stud quantity, pilot diameters, and bolt circle diameter to the original hub assembly to ensure a proper match. Because the ABS sensor is included, inspect the connector and harness condition during installation and verify sensor routing before final assembly.

Quality Assurance

This InMotion hub assembly is produced using OE-based measurements and manufactured under strict quality-control standards for consistent fit and service life. It is intended as a direct replacement for the original rear hub assembly on the listed applications.