What size tires are on a SC400?
The tire size on a Lexus SC400 isn’t fixed across all years and trims. The car used different OEM sizes depending on model year and wheel package, but the most common configuration for the original 16-inch wheels is around 225/60R16 or 235/55R16; 17-inch wheels commonly used 235/45R17 or 245/40R17; 15-inch wheels (where equipped) typically used about 205/65R15. Always verify the exact size on the door placard or in the owner's manual.
Common OEM Tire Sizes by Wheel Diameter
These figures reflect typical factory setups reported for SC400s with the corresponding wheel size. Variations by year, market, and wheel choice are possible.
- 15-inch wheels: common sizes include 205/65R15 or 215/60R15, front and rear depending on specific production year and market.
- 16-inch wheels: common sizes include 225/60R16 or 235/55R16.
- 17-inch wheels: common sizes include 235/45R17 or 245/40R17, typically when the car was equipped with larger aftermarket or factory-upgraded wheels.
To ensure you get the correct tires for your SC400, check the door jamb placard for the recommended size and inflation pressures, and refer to the owner's manual for model-specific guidance.
How to Confirm Your Vehicle’s Exact Size
Follow these steps to verify the exact stock size for your car:
- Check the tire sidewall for the size code (for example, P225/60R16). This tells you the width, aspect ratio, and wheel diameter.
- Look at the placard on the driver's door jamb for the recommended tire size for front and rear, plus inflation pressures.
- Consult the owner's manual or contact a Lexus dealer with your VIN to confirm OEM specifications for your exact year and trim.
Knowing your precise OEM size helps you choose replacements that preserve handling, load capacity, and speedometer accuracy, especially if you’re upgrading to different wheel diameters.
Reading Tire Codes: What the Numbers Mean
P225/60R16 is an example code where:
- P indicates a passenger vehicle tire
- 225 is the width in mm
- 60 is the aspect ratio (height as a percentage of width)
- R indicates radial construction
- 16 is the wheel diameter in inches
Understanding these codes helps ensure you buy the right tires for your car.
Summary
SC400 tire sizes vary by model year, trim, and wheel package. Most original configurations used 16-inch wheels with sizes in the 225/60R16 to 235/55R16 range; 17-inch wheels were typically 235/45R17 or 245/40R17. Verify the exact size on the door placard or in the owner's manual—especially if you’ve upgraded wheels—and choose tires that match OEM specs or properly accommodate any wheel changes.
What size tires are on a Lexus SC400?
225/55R16
What size tires are on a 1997 SC400?
Shop Tires for 1997 Lexus SC400 Standard | 225/55R16 | Goodyear Auto Service.
What size tires are on a 1992 Lexus SC400?
1992 Lexus SC400 Standard 225/55R16 Tires | Shop Goodyear Tires.
What size tire is a 1995 SC400?
For 1995, the dimensions for your SC400 are:
225/55 R16.
