InMotion WA512536 Wheel Bearing and Hub Assembly - Rear

Rear Wheel Bearing and Hub Assembly for Subaru

InMotion WA512536 is a rear wheel bearing and hub assembly built for direct replacement service on select Subaru models. It is engineered from OE data and measurements for fitment, performance, and service life, with an integrated ABS sensor and hub dimensions matched to the listed applications.

Key Features

• Rear wheel bearing and hub assembly for select Subaru vehicles
• Integrated anti-lock brake sensor included
• 27-spline design
• 5 wheel studs with 4 flange bolt holes
• Bolt circle diameter: 114.3 mm / 4.5 in
• Flange diameter: 137.8 mm
• Flange offset: 66.5 mm
• Wheel pilot diameter: 55.9 mm
• Brake pilot diameter: 57.9 mm
• Hub pilot diameter: 83.9 mm
• Rectangle flange shape

Detailed Description

This InMotion wheel bearing and hub assembly, part number WA512536, is manufactured with precision processes and strict quality-control standards. It is built as a direct replacement for the original rear hub assembly on 2015-2021 Subaru Legacy, 2015-2021 Subaru Outback, 2019-2021 Subaru Ascent, 2019 Subaru Forester, 2015-2019 Subaru WRX, and 2015-2016 and 2019 Subaru WRX STI in standard grade rear applications. The WA512536 hub assembly uses OE-based measurements to support correct alignment of the wheel, brake components, and ABS system interface.

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

Common Replacement Reasons

• Rear wheel bearing noise, growling, or humming
• Excessive wheel play or looseness at the hub
• ABS warning light caused by a failing hub sensor
• Uneven brake rotor contact from hub wear
• Vibration or roughness from a worn rear hub assembly

Installation Notes and Tips

Confirm rear position, standard grade configuration, and all hub dimensions before installation. Compare the spline count, bolt circle diameter, flange offset, and pilot diameters to the original part on the vehicle. Clean the mounting surface thoroughly and inspect related brake and suspension components during replacement. For Subaru WRX, WRX STI, Legacy, Outback, Forester, and Ascent rear hub service, verify ABS connector routing and sensor alignment before final assembly.

Quality Assurance

InMotion manufactures this hub assembly using OE data, precise measurements, and controlled production standards to support consistent fitment and long-term service. Part number WA512536 is built for the listed Subaru rear applications and is intended as a direct replacement for the original assembly.