Timken HA590170 Wheel Bearing and Hub Assembly - Rear

Rear Wheel Bearing Hub Assembly for Toyota and Scion

Timken HA590170 is a rear wheel bearing and hub assembly for select Toyota Yaris and Scion iQ applications. It is built with OE-developed testing and controlled manufacturing processes to support consistent wheel-end performance, smoother operation, and stable braking feel.

Key Features

• Rear, non-driven hub assembly for 2007-2014 Toyota Yaris and 2012-2015 Scion iQ
• 4-bolt flange design with 4 wheel studs
• Wheel pilot diameter: 54.00 mm; hub pilot diameter: 74.00 mm
• Brake pilot diameter: 55.00 mm; flange diameter: 135.00 mm
• Bolt circle diameter: 100.00 mm and flange offset: 60.00 mm
• Precision bearing geometry and refined surface finish for controlled load handling
• ABS sensor is 100% tested for wheel-speed monitoring
• Timken HA590170 cross-references MOOG 512522 and SKF BR930848

Detailed Description

Timken HA590170 is a direct-fit rear wheel bearing and hub assembly engineered for select Toyota Yaris and Scion iQ models. The assembly uses precision internal geometry, uniform bearing surfaces, and premium sealing features to help reduce runout, noise, and vibration while supporting reliable wheel-end operation. For drivers searching for a rear wheel bearing hub assembly for 2007-2014 Toyota Yaris or a rear hub assembly for 2012-2015 Scion iQ, this part matches the listed OE-style dimensions and mounting pattern.

The design includes a 4-lug flange with a 100 mm bolt circle, 54.00 mm wheel pilot diameter, and 74.00 mm hub pilot diameter. Timken also tests the ABS sensor to monitor wheel speed for anti-lock braking system operation. If you are replacing a worn rear hub on a Toyota Yaris or Scion iQ, Timken HA590170 provides the fitment and dimensional details needed for a proper service replacement.

Common Problems This Part Can Address

• Rear wheel bearing noise, humming, or growling
• Excess wheel play or looseness at the hub
• ABS warning light caused by wheel-speed sensor issues
• Brake vibration or inconsistent braking feel from hub runout
• Uneven tire wear related to a worn rear hub assembly

Installation Notes and Tips

Confirm rear fitment by year, model, and position before installation. Inspect the knuckle, axle area, and mating surfaces for corrosion or damage, and clean the mounting surface thoroughly so the hub seats correctly. Verify the ABS connector routing and sensor alignment during installation, and torque all 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 bearing construction, sealing system, and ABS sensor testing are intended to support consistent performance in daily driving conditions.