InMotion WA513188HD Wheel Bearing and Hub Assembly - Front

Front Wheel Hub Assembly for Trailblazer and Envoy

InMotion WA513188HD is a front wheel bearing and hub assembly built for direct replacement on select GM and related SUVs. It is engineered from OE data and measurements for accurate fitment, stable wheel support, and long service life.

Compatible with front applications on the Chevrolet Trailblazer, GMC Envoy, Saab 9-7x, Isuzu Ascender, Buick Rainier, Chevrolet SSR, Trailblazer EXT, Envoy XL, Envoy XUV, and Oldsmobile Bravada.

• Part number: WA513188HD
• Wheel bearing and hub assembly for driven front applications
• Ball bearing design
• 27 spline quantity
• ABS sensor included with linear connector
• Tone ring with 55 teeth
• 6 flange bolts included; 3 mounting bolts to knuckle
• Wiring harness included, 35 in. length
• Hub pilot diameter: 79 mm (3.11 in.)
• Flange diameter: 150 mm (5.91 in.)
• Flange offset: 47 mm (1.85 in.)
• Flange bolt thread size: M12-1.5
• Lug bolt thread size: M12-1.75

Detailed Fitment and Application

This InMotion hub assembly is a direct replacement for front wheel service on 2002-2009 Chevrolet Trailblazer, front; 2002-2009 GMC Envoy, front; 2005-2009 Saab 9-7x, front; 2003-2008 Isuzu Ascender, front; 2004-2007 Buick Rainier, front; 2003-2006 Chevrolet SSR, front; 2002-2006 Chevrolet Trailblazer EXT, front; 2002-2006 GMC Envoy XL, front; 2004-2005 GMC Envoy XUV, front; and 2002-2004 Oldsmobile Bravada, front. WA513188HD is built to match the original hub geometry and sensor interface for these vehicles, making it a practical OE-style replacement for worn front hub service.

This part cross-references SKF (e.g., BR930470, FW121) for the same application.

What This Hub Assembly Helps Address

• Front wheel bearing noise or growling
• ABS warning light concerns related to the hub sensor assembly
• Wheel looseness or play at the hub
• Uneven wheel rotation caused by hub wear
• Fitment issues when replacing a damaged OE front hub

Installation Notes and Tips

Confirm the vehicle uses a driven front hub with a 27-spline configuration before installation. Verify ABS connector shape, flange bolt thread size, and mounting bolt pattern against the original part. Clean the knuckle mounting surface and inspect related hardware, axle splines, and tone ring condition during service. WA513188HD is intended as a direct replacement for the listed applications, including Chevrolet Trailblazer and GMC Envoy front hub service.

Quality Assurance

InMotion manufactures these hub assemblies with high-precision processes and strict quality-control standards. Each unit is engineered from OE data and measurements to support proper fit, performance, and durability in the specified applications.