What size tires are on a 1992 SC400?
The stock tires for a 1992 Lexus SC400 are 225/55R16 in the front and 245/50R16 in the rear, mounted on 16-inch wheels.
In this article we examine the original equipment tire sizes for the 1992 SC400, how to verify them on your car, and what to consider if you’re replacing tires or upgrading wheels. We also cover common variations and how to read tire codes to confirm the correct sizing.
OEM tire size and wheel information
Understanding the factory sizing helps with ride quality, handling, and speedometer accuracy. The 1992 SC400 commonly uses a staggered setup with 225mm width in front and 245mm width in rear on 16-inch wheels, a layout designed to balance grip and performance for this rear-wheel-drive coupe.
- Front: 225/55R16
- Rear: 245/50R16
Always verify the exact sizes on your vehicle by checking the tire placard on the door jamb and inspecting the sidewalls of the current tires. OEM numbers can vary slightly by market or production run, so confirmation is essential before buying replacements.
Why this matters for replacement tires
Using the correct sizes ensures proper clearance, accurate speedometer readings, and balanced handling. If you’re considering non-OEM sizes, consult a tire professional to ensure there is adequate clearance and no rubbing under suspension travel. Adjustments may include tire width, profile, or even wheel diameter changes, which can affect gearing and performance.
Additionally, if you own a different year SC400 or aftermarket wheels, sizes may differ. Always confirm with the placard or service manual for your specific build date and market.
Additional notes on variants
- Markets outside North America sometimes had slight variations, but the 16-inch wheel with 225/55R16 front and 245/50R16 rear combination is widely cited for many 1992-1994 SC400 models.
- Some owners with aftermarket wheels may run different sizes; if doing so, ensure clearance around struts, fenders, and calipers can accommodate the wider tire or altered aspect ratio.
For most owners, staying with OEM sizes is the simplest path to preserving handling and wear patterns. If you’re unsure, check the door jamb placard or consult a Lexus service advisor with your VIN to confirm exact specs for your car.
Summary
The 1992 SC400 typically came with 225/55R16 front tires and 245/50R16 rear tires on 16-inch wheels. Verify these sizes on your vehicle’s placard and with the VIN-specific documentation before purchasing replacements, especially if wheels have been upgraded.
Final takeaway: matching the factory tire sizes helps maintain intended handling, acceleration feel, and speedometer accuracy for the 1992 SC400. When in doubt, consult a qualified professional or your Lexus dealer to confirm your exact configuration.
How much is a 1992 Lexus SC400 worth?
The value of a used 1992 Lexus SC 400 ranges from $2,601 to $7,404, based on vehicle condition, mileage, and options. Get a free appraisal here.
What size tires are on a Lexus SC400?
225/55R16
Lexus tire pressures recommendations and sizes
| Tire Size | Position | Pressure |
|---|---|---|
| 225/55R16 94V | Front | 32 Bar |
| 225/55R16 94V | Rear | 32 Bar |
| 225/55R16 93V | Front | 32 Bar |
| 225/55R16 93V | Rear | 32 Bar |
What is the specs of the 1992 Lexus SC400?
The 1992 Lexus SC400 is a rear-wheel-drive luxury coupe powered by a 4.0L V8 engine, which produced 250 horsepower and 260 lb-ft of torque. It came standard with a 4-speed automatic transmission and featured a 0-60 mph time of 6.9 seconds and an estimated top speed of 150 mph. Key specifications include a curb weight of around 3,516 to 3,640 lbs, a 9.3 cu.ft. cargo capacity, and standard ABS brakes.
You can watch this video to learn about the engine and features of the 1992 Lexus SC400: 59sMark RodenYouTube · Mar 25, 2025
Performance and engine
- Engine: 4.0L V8 (1UZ-FE)
- Horsepower: 250 hp @ 5,600 RPM
- Torque: 260 lb-ft @ 4,400 RPM
- Transmission: 4-speed automatic
- Drivetrain: Rear-wheel drive
- 0-60 mph: 6.9 seconds
- Top Speed: 150 mph (estimated)
Dimensions and weight
- Curb Weight: Approximately 3,516 - 3,640 lbs
- Overall Length: 191.1 inches
- Wheelbase: 105.9 inches
- Cargo Capacity: 9.3 cu.ft.
Other features
- Brakes: Four-wheel vented discs with 4-sensor, 3-channel Anti-lock Braking System (ABS)
- Fuel Economy: 16 MPG city / 20 MPG highway
- Interior: Leather upholstery, automatic climate control, and an available premium sound system
- Safety: Front airbags and 4-wheel ABS were standard
What size tire is a 1992 SC400?
For 1992, the dimensions for your SC400 are:
225/55 R16.
