Lexus RX350 Wheel Bearing Guide: 2007 to 2016 Models
Hearing a humming or roaring noise from your wheels? This guide covers the common causes and replacement options for your RX350.
- The front of 2007-2015 models uses a press-in bearing requiring special tools, while 2016 front and all 2007-2016 rear bearings are easier-to-replace bolt-on hub assemblies.
- For rear hubs, you must buy the correct part for your FWD or AWD model as they are not interchangeable.
- The most common symptom of failure is a roaring or humming noise that gets louder with speed and changes when you turn.
- For best results and longevity, choose OEM-grade brands like Koyo, NSK, Timken, or SKF.
Is Your Lexus RX350 Making a Roaring Noise?
The most common sign of a failing wheel bearing is a noise that changes with your speed. It often starts as a faint hum but can become a loud roar or growl, similar to the sound of aggressive off-road tires. You might also notice the noise gets louder when you turn the steering wheel in one direction and quieter when you turn the other. As the problem gets worse, you may feel a vibration in the steering wheel or floor, or notice the wheel feels loose if you try to wiggle it while the car is jacked up.
Choosing the Right Aftermarket Wheel Bearing
When shopping for a replacement, it's critical to know what your specific RX350 needs. The parts are different depending on the year and location on the vehicle.
- Front Wheels (2007-2015 models): These models use a press-in bearing. This means the individual bearing is pressed into your car's steering knuckle using a hydraulic shop press. This is not a simple bolt-off, bolt-on job and requires special equipment. For a DIY replacement, the easiest path is to buy a complete steering knuckle assembly which comes with a new bearing already pressed in. 🎬 Watch: How to replace the front wheel bearing and hub
- Front Wheels (2016 model): The 2016 RX350 was updated to use a bolt-on wheel hub assembly for the front wheels. This design is much easier to replace and does not require a press.
- Rear Wheels (All 2007-2016 models): All models in this year range use a bolt-on wheel hub assembly for the rear. This is a straightforward replacement for a DIYer with basic tools.
FWD vs. AWD is Critical for Rear Hubs
When ordering a rear wheel hub assembly, you must get the correct part for your drivetrain. An All-Wheel Drive (AWD) hub has internal splines for the axle shaft, while a Front-Wheel Drive (FWD) hub does not. They are not interchangeable. The front bearings are the same for both FWD and AWD models.
Aftermarket Brand Quality Tiers
Not all aftermarket brands are created equal. For a vehicle like the Lexus RX350, choosing a quality part is key to maintaining its quiet ride and ensuring longevity.
- Tier 1: OEM-Grade Brands (Recommended)
These brands are often the original equipment manufacturers (OEM) for Toyota and Lexus, or are known for equivalent quality. They are the best choice for a long-lasting, quiet repair. Brands include Koyo (often the actual OEM part), NSK, NTN, SKF, and Timken. - Tier 2: Quality Aftermarket Brands
These brands offer a good balance of quality and value. They are reliable choices from established manufacturers. This tier includes FAG, GMB, National Bearing, and Beck Arnley (which often repackages OEM parts). - Tier 3: Economy Brands
These brands are the most budget-friendly but may not offer the same lifespan or quiet operation as premium brands. Consider these if the budget is the primary concern. This tier includes Dorman, Mevotech, TrueDrive, and WJB.
Estimated Replacement Costs
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Part | $30 - $96 |
| New OEM Part | $150 - $350+ |
| Shop Labor (Rear Bolt-on Hub) | $125 - $250 per wheel |
| Shop Labor (Front Press-in Bearing) | $250 - $500+ per wheel |
Frequently Asked Questions
Do I need to replace wheel bearings in pairs?
It is not strictly necessary, but it is often recommended. Wheel bearings on the same axle experience the same wear. If one has failed, the other may not be far behind. Replacing them in pairs can save you from having to do the same job twice in the near future.
What's the difference between a press-in bearing and a hub assembly?
A press-in bearing is just the individual bearing cartridge that must be pressed into the steering knuckle with a large hydraulic press. A hub assembly is a complete unit that includes the bearing, hub, and mounting flange all in one piece. It simply bolts onto the vehicle, making it much easier to install. Your 2007-2016 RX350 has bolt-on assemblies in the rear, but 2007-2015 models have press-in bearings in the front.
How can I tell if the noise is from the left or right side?
You can often identify the bad bearing while driving. On a safe, open road, gently swerve left and right at a speed where the noise is clear. If the noise gets louder when you turn right, the bad bearing is likely on the left side (as it's being loaded with the car's weight). If it gets louder when you turn left, the bad bearing is likely on the right side.
🎬 Watch: How to diagnose wheel bearing noise like a proWhy is the front bearing so much harder to replace than the rear on my 2007-2015 RX350?
The front uses a press-in bearing design, while the rear uses a bolt-on hub assembly. To replace the front bearing, the entire steering knuckle must be removed from the vehicle and taken to a shop with a hydraulic press to swap the bearing. The rear hub assembly can be unbolted and replaced in your driveway with standard tools.
🎬 See this walkthrough for replacing a rear AWD hub assemblyHelpful Videos
Technical Specifications
OEM Part Numbers: 90369-45006 42450-0E100 42410-0E030 42410-48060 43550-0E010 42410-0E070
Front (2007-2015): Press-in bearing. Front (2016): Bolt-on hub assembly. Rear (2007-2016): Bolt-on hub assembly. Rear hubs are specific to FWD or AWD drivetrains.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Lexus RX350: