Lexus IS300 Spare Tire

The Lexus IS300 typically comes equipped with a spare tire for emergency purposes, often referred to as a "donut", as it is smaller and thinner than regular tires. This spare tire is not designed for long distances or high speeds and is only intended to be used as a temporary replacement to get the vehicle safely to a location where the main tire can be repaired or replaced. As for the exact size, it may vary according to the model and year of the Lexus IS300, but commonly, compact spare tires for this model can be sized at T145/70D18. It is always recommended to check the specific user manual or consult with a local Lexus dealer for accurate information.

Lexus IS300 models manufactured from 2001 to 2025 have tires with overall diameter ranging from 24.6" to 26.4", allowing the use of a temporary spare tire with a near same diameter as the OEM tire. Tire diameter and wheel diameter clearance have been taken into account for the specific Lexus IS300 years and trims.

Listed below are compact spare tire sizes that can fit some Lexus IS300 vehicles based on acceptable tire diameter range of 23.9" to 27.2". Some IS300 models may require the use of a traditional full-size tire as a spare. To ensure safe temporary mobility in case of a road emergency, always refer to the vehicle owner's manual for the correct Lexus IS300 spare tire size designated by vehicle's manufacturer.

Spare Size	Spare Diameter
T145/60R20from $271.36	26.9"
T145/80D18from $257.05	27.1"
T155/70R18from $178.60	26.6"
T155/70D17from $175.43	25.6"
T155/60R18from $164.19	25.3"
T135/90R17from $158.19	26.6"
T135/90R16from $155.20	25.6"
T135/70R19from $147.99	26.5"
T125/85D16from $146.92	24.3"
T155/70R17from $139.76	25.6"
T135/70D18from $135.05	25.5"
T135/80R17from $133.66	25.5"
T135/70R18from $131.66	25.5"
T125/80R17from $127.33	24.9"
T135/80R18from $125.96	26.5"
T125/70R18from $123.33	24.9"
T145/70D17from $120.99	25"
T125/90R16from $119.73	24.9"
T145/70D18from $118.97	26"
T115/95R17from $117.54	25.6"
T135/80D17from $112.58	25.5"
T155/80D17from $97.90	26.8"
T135/80D16from $93.99	24.5"
T155/90D16from $92.99	27"
T145/90D16from $88.99	26.3"
T145/80D17from $81.99	26.1"
T145/80R17	26.1"
T145/80R16	25.1"
T145/80R18	27.1"
T145/90R16	26.3"
T155/70D18	26.6"
T155/80D16	25.7"
T155/80R16	25.7"
T155/80R17	26.8"
T155/90R16	27"
T165/70D17	26.1"
T165/70D18	27.1"
T165/70R17	26.1"
T165/70R18	27.1"
T185/55D18	26"
T185/55R18	26"
T185/60R17	25.7"
T185/60D17	25.7"
T145/80D16	25.1"
T145/70R18	26"
T145/65R18	25.4"
T145/70R17	25"
T125/80D17	24.9"
T125/90D16	24.9"
T135/60D18	24.4"
T135/60D19	25.4"
T135/60R18	24.4"
T135/60R19	25.4"
T135/70D17	24.5"
T135/70R17	24.5"
T135/80D18	26.5"
T135/80R16	24.5"
T135/90D15	24.6"
T135/90D16	25.6"
T135/90D17	26.6"
T135/90R15	24.6"
T145/65D18	25.4"
T125/70R19	25.9"

Spare Tire for Lexus IS300

Discover spare tire solutions for your Lexus IS300 based on model year. Generally, spare tire size has to be within 3% of the overall diameter of the original equipment tire size. Lexus IS300 tire size can vary depending on the year and trim. Make sure to check the load index and load capacity of the spare tire to ensure that it is capable to safely support your vehicle's weight.

All listed guides, data and/or calculations are for informational purposes only. Spare-Tires.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information. Always refer to vehicle owner's manual for the correct spare tire size configuration.