A-Premium Steering Knuckle & Wheel Bearing Hub Assembly — Front Left & Right, Loaded Direct-Fit for Corolla/Matrix

The A-Premium front left and right steering knuckle hub assemblies are complete, brand-new steel units that replace worn factory components on compatible Corolla and Matrix models to restore steering stability and wheel alignment.

These loaded knuckle assemblies come pre-assembled with bearings and hubs to simplify front-end repairs on Toyota Corolla and Matrix vehicles from select 2009–2018 model years. Designed as direct-fit replacements, they match OEM mounting points and reference part numbers so you can swap both driver and passenger side units without modifying suspension geometry.

Which cars does this steering knuckle hub assembly fit?

This A-Premium assembly fits specific Toyota Corolla and Matrix model years and engine configurations. Always verify your vehicle’s year and engine code before purchasing to ensure compatibility.

• Toyota Corolla 2014–2018 L4 1.8L
• Toyota Corolla 2009–2013 L4 1.8L (U.S.-built)
• Toyota Corolla 2009–2012 L4 2.4L (U.S.-built)
• Toyota Matrix 2009–2013 L4 1.8L and Matrix 2014 L4 1.8L (Canada)
• Reference part numbers: 698-477, 698-476, LK034, LK033, 4778202210, 4778102210

How will replacing the knuckle and hub assembly affect driving feel?

Swapping a worn knuckle/hub for a new, loaded assembly can noticeably improve steering response and reduce noise and vibration. Because the bearing and hub arrive pre-installed, you eliminate extra assembly steps and reduce the risk of misalignment during installation.

• Restores smoother wheel rotation and reduces vibration
• Improves steering precision during turns and braking
• Eliminates play from aged bearings that cause wobble
• Direct-fit design helps keep factory alignment settings intact

What problems might indicate it's time to replace this assembly?

Several common symptoms point to a failing steering knuckle or wheel bearing assembly. If you notice any of the following, inspect the front hubs and knuckles and consider replacement with a loaded unit to address the issue efficiently.

• Grinding, growling, or humming noises from the front wheels
• Noticeable wheel vibration, wobble, or looseness while driving
• Uneven or accelerated tire wear on the front tires
• Pulling to one side or stiff/difficult turning

What is included and what should I expect during installation?

The A-Premium assemblies are supplied brand-new and include the steel knuckle, hub, and bearing pre-installed. Axles are not included; you will reuse your vehicle's axle shaft or install a new one if required by your repair plan.

• Condition: brand-new steel knuckle with loaded bearing and hub
• Includes both driver and passenger side assemblies when purchased as a pair
• Axle shafts are not included—plan accordingly
• One-year limited guarantee from the manufacturer

Who is this for: This A-Premium steering knuckle and wheel bearing hub assembly is aimed at DIY mechanics, independent repair shops, and fleet technicians servicing Toyota Corolla and Matrix models listed above. It's appropriate for anyone replacing worn front suspension components who wants a direct-fit, pre-assembled unit that reduces bench time and helps restore safe, quiet wheel operation.