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What is the tire size for a Lexus RX450h?

The tire size for a Lexus RX450h varies by model year and wheel package, but the most common OEM size is 235/55R18 on 18-inch wheels. Always verify your exact size on your vehicle, as trims with larger wheels use different specifications.


Understanding tire size variations on the RX450h


The RX450h has been sold with several wheel options across its generations. The correct tire size is printed on the tire sidewall and on a placard inside the driver's door jamb or in the owner's manual. Below are the typical sizes you may encounter based on wheel size, but always confirm for your specific vehicle.


Common OEM sizes by wheel option



  • 18-inch wheels: 235/55R18 is the most common tire size for many RX450h models.

  • 19-inch wheels: When equipped with 19-inch wheels, a common size is 235/50R19 (sizes can vary by trim).

  • 20-inch wheels: Some later configurations use 235/55R20 (depending on the exact model and package).


Concluding paragraph: For the exact tire size on your RX450h, verify the size printed on the tire sidewall and check the door jamb placard or your owner's manual. Using the correct size ensures proper handling, speedometer accuracy, and safety.


Where to find the exact tire size


Look at the tire sidewall for the size stamp (e.g., 235/55R18). Additionally, check the tire information placard on the driver’s door jamb, and consult the owner's manual or Lexus dealership if you’re unsure.


Notes on replacements


When replacing tires, aim to match the OEM size, aspect ratio, and wheel diameter. If you must use a different size, consult a tire professional to assess impacts on clearance, ride quality, and vehicle systems such as ABS and traction control.


Summary


The RX450h typically uses 235/55R18 tires on 18-inch wheels, with 19-inch and 20-inch wheel configurations delivering sizes like 235/50R19 and 235/55R20 in some trims. Always confirm the exact size for your vehicle via the door placard or owner's manual, and replace tires in matched sets when possible.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.