What size wheels are on a Lexus SC430?
The Lexus SC430 standard configuration uses 18-inch wheels, with front wheels sized at 18x7.5 inches and rear wheels at 18x8.0 inches, paired with tires roughly 245/45R18 in front and 275/40R18 in back. Exact sizes can vary by year or market, so always check your vehicle’s placard or owner's manual for precision.
Overview of stock wheel sizing
The following outlines the most common OEM configuration for Lexus SC430 models, which reflects the factory setup used across the model’s production run.
- Wheel diameter: 18 inches
- Front wheel width: 7.5 inches (7.5J)
- Rear wheel width: 8.0 inches (8J)
- Tire sizes: 245/45R18 front, 275/40R18 rear
These dimensions represent the typical factory specification for the SC430. Individual vehicles may vary if they have dealer-installed wheels or aftermarket replacements, so verify the exact sizes on your specific car.
Notes on year-to-year variations
While the 18-inch diameter remained consistent across the SC430’s production years, there can be minor differences in tire performance specs or wheel finishes by year or market. The core measurements above—18-inch diameter with the front/rear width split and corresponding tire sizes—remain the standard reference point for most models.
How to verify the wheel size on your SC430
To confirm the exact wheel and tire sizes for your car, use these reliable sources and checks:
- Check the tire sidewall for size markings (for example, 245/45R18 or 275/40R18); the diameter is encoded in the tire size.
- Inspect the door jamb placard on the driver’s side; it lists the original approved tire and wheel sizes by the factory.
- Look at the wheel itself for stamped size information (for example, 18x8.0) on the hub area or backside.
- Consult the owner’s manual or contact a Lexus dealer with your VIN for the exact factory specification for your vehicle.
In practice, cross-referencing these sources will confirm the precise wheel size for your SC430, especially if aftermarket wheels or tires have been installed.
Summary
The SC430’s typical factory setup centers on 18-inch wheels, with front wheels at 18x7.5 inches and rear wheels at 18x8.0 inches, complemented by 245/45R18 front tires and 275/40R18 rear tires. Always verify the exact configuration for your individual vehicle via the door placard, owner’s manual, or VIN-specific dealer data, since year, market, or optional packages can introduce variations. If replacing wheels or tires, matching the OEM size helps preserve proper clearance and handling.
Is the Lexus SC430 rare?
The car is relatively rare. Almost 50% were year models 2002 and 2003.
What size are the wheels on a Lexus SC430?
Details
| SKU | HOL.74160-BRIGHT-PVD-SW |
|---|---|
| Finish | PVD Bright Chrome |
| Make | Lexus |
| Model | SC430 |
| Wheel Size | 18x8 |
What size tires are on a 2005 Lexus SC430?
The standard tire size for a 2005 Lexus SC430 is 245/40R18 93Y. This indicates a tire with a 245mm width, a 40% aspect ratio, an 18-inch rim diameter, a 93 load index, and a 'Y' speed rating. You can also find this information on the sticker located on the driver's side door jamb.
- Tire size: 245/40R18 93Y
- Width: 245mm
- Aspect ratio: 40%
- Rim diameter: 18 inches
- Load index: 93 (supports up to 1,433 lbs)
- Speed rating: Y (maximum speed of 186 mph)
What size tires are on a 2004 Lexus SC430?
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