Timken HA590373 Wheel Bearing and Hub Assembly - Rear

Timken Rear Hub Assembly for Prius

Timken HA590373 is a rear wheel bearing and hub assembly built for 2010-2015 Toyota Prius and 2012-2015 Toyota Prius Plug-In applications. It is engineered for non-driven rear positions and uses OE-developed testing and controlled manufacturing processes to support consistent fit and performance.

Key Features

• Rear wheel bearing and hub assembly for Toyota Prius and Prius Plug-In
• Non-driven design for rear axle applications
• 5 wheel studs and 4 flange bolt holes
• 114.30 mm bolt circle diameter and 148.00 mm flange diameter
• Low runout design to reduce noise and vibration
• Premium seals with reinforced construction and contamination exclusion features
• Precision bearing profiles and enhanced surface finishes for load capacity and bearing life
• ABS sensor monitoring is 100% tested for wheel speed signal performance

Detailed Description

Timken HA590373 is a direct-fit rear hub assembly for Toyota Prius rear applications, including 2010-2015 Prius and 2012-2015 Prius Plug-In. The assembly is built around premium bearings with uniform internal geometry and refined surface finishes to support smooth rotation, stable braking feel, and efficient operation. The hub design also incorporates low runout characteristics that help reduce vibration and wheel-end noise.

Sealing components are designed with reinforced construction and contamination control features to help protect the bearing from debris and moisture intrusion. The integrated ABS sensor is tested to monitor wheel speed for anti-lock braking system operation. If you are replacing a worn rear hub on a Toyota Prius or Prius Plug-In, Timken HA590373 provides the OE-style dimensions and sensor integration needed for a proper repair.

This part cross-references SKF BR930931 for the same application.

What It Helps Fix

• Rear wheel bearing noise or humming
• Excessive wheel-end vibration
• ABS warning light caused by wheel speed signal issues
• Loose or rough-feeling rear hub operation
• Brake pulsation related to hub runout

Installation Notes and Tips

Confirm rear position fitment before installation. Verify the bolt circle, flange offset, hub pilot diameter, and wheel pilot diameter against the original part to ensure correct alignment on the Toyota Prius or Prius Plug-In. Inspect the mating surfaces, axle area, and ABS connector condition during replacement, and torque fasteners to the vehicle manufacturer’s specifications.

Quality Assurance

Timken manufactures hub bearing assemblies using OE-developed test procedures and controlled design, material, and process standards. The HA590373 is built to support consistent performance, sealing integrity, and wheel-speed monitoring in rear Prius applications.