InMotion WA512370 Wheel Bearing and Hub Assembly - Rear

Rear Wheel Bearing Hub Assembly for Toyota and Scion

InMotion WA512370 is a rear wheel bearing and hub assembly built for direct replacement service on select Toyota and Scion applications. It is engineered from OE data and measurements to match the original fit, performance, and service life requirements for the listed vehicles.

Compatible with 2012-2019 Toyota Prius C rear, 2006-2014 Toyota Yaris rear, and 2013 Scion iQ rear, this assembly includes the ABS sensor and is built to the specified hub and flange dimensions for accurate installation.

Key Features

• Part number: WA512370
• Rear wheel bearing and hub assembly
• Includes anti-lock brake sensor
• 4 wheel stud design with 4 flange bolt holes
• Wheel pilot diameter: 54.0 mm
• Brake pilot diameter: 55.0 mm
• Hub pilot diameter: 74.0 mm
• Flange diameter: 135.0 mm
• Bolt circle diameter: 100.0 mm (3.937 in.)
• Modified flange shape with 60.0 mm flange offset

Detailed Description

InMotion WA512370 is a precision-built rear hub assembly for Toyota Prius C, Toyota Yaris, and Scion iQ models listed in the fitment data. Manufactured using strict quality-control criteria, it is designed as a direct replacement for the original rear hub assembly and uses OE-based measurements to support proper wheel mounting, brake alignment, and sensor integration. The 4-stud, 4-bolt-hole configuration and specified pilot diameters help ensure the assembly matches the vehicle’s original mounting geometry.

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

Vehicle Fitment

• Fits 2012-2019 Toyota Prius C, rear, Standard Grade
• Fits 2006-2014 Toyota Yaris, rear, Standard Grade
• Fits 2013 Scion iQ, rear, Standard Grade

Common Replacement Uses

• Rear wheel bearing noise or rough rotation
• Loose or worn hub assembly at the rear axle
• ABS warning light related to a failed hub sensor
• Wheel vibration caused by hub wear or damage
• Uneven wheel mounting from a worn stud-and-hub interface

Installation Notes and Tips

Verify rear fitment by year, make, model, and Standard Grade application before installation. Confirm the 4-lug bolt pattern, pilot diameters, and ABS sensor connection match the original part. Clean the mounting surface thoroughly and inspect related brake and axle components for wear before installing the new hub assembly.

Quality Assurance

InMotion manufactures this hub assembly with OE-based engineering data and controlled production standards to support consistent fitment and durability on the listed Toyota and Scion rear applications.