InMotion WA512243 Wheel Bearing and Hub Assembly - Rear

Rear Wheel Bearing Hub Assembly for Cadillac

InMotion WA512243 is a rear wheel bearing and hub assembly engineered for direct replacement on select Cadillac applications. Built from OE data and measurements, it is designed for precise fitment, stable wheel support, and consistent ABS signal performance.

Key Features

• Rear wheel bearing and hub assembly for select Cadillac CTS, SRX, and STS models
• 30-spline design with 6 wheel studs
• ABS sensor included
• 3 flange bolt holes with 115.0 bolt circle diameter
• Wheel pilot diameter: 59.0; hub pilot diameter: 59.8
• Brake pilot diameter: 70.1 and flange offset: 42.1
• Interchanges with RW20-22 for the same application

Detailed Description

InMotion WA512243 is a rear hub assembly built for 2004-2007 Cadillac CTS, 2004-2009 Cadillac SRX, and 2005-2011 Cadillac STS, rear. The assembly is manufactured with high-precision processes and strict quality-control standards to match the original part’s dimensions and operating requirements. For shoppers searching for a rear wheel bearing hub assembly for Cadillac CTS rear, Cadillac SRX rear hub replacement, or Cadillac STS rear wheel hub assembly, WA512243 provides the OE-style specifications needed for proper wheel mounting and sensor integration.

The hub features a 30-spline configuration, 6 wheel studs, a 145.5 flange diameter, and a 115.0 bolt circle diameter. The included ABS sensor supports vehicles that rely on wheel-speed input at the rear axle. Part number WA512243 is also a direct cross-reference to RW20-22 for the same application.

Common Problems This Part Can Address

• Wheel bearing noise from the rear hub area
• Excessive wheel play or looseness at the rear axle
• ABS warning light caused by a failed rear hub sensor assembly
• Uneven wheel mounting or hub wear on compatible Cadillac models
• Vibration or roughness traced to a worn rear bearing assembly

Installation Notes and Tips

Confirm rear fitment by matching the vehicle year, model, and OE-style dimensions before installation. Inspect the mating surfaces, axle splines, and surrounding brake components for wear or corrosion, and verify ABS connector routing during replacement. Proper torque procedures should be followed for the wheel studs and hub fasteners to help maintain correct alignment and bearing life.

Quality Assurance

InMotion manufactures this hub assembly using OE data, precise measurements, and controlled production standards to support accurate fitment and dependable operation. WA512243 is built as a direct replacement for the original rear hub assembly on the listed Cadillac applications.

• Fits 2005-2011 Cadillac STS, rear
• Fits 2004-2009 Cadillac SRX, rear
• Fits 2004-2007 Cadillac CTS, rear