Subaru Ascent Spare Tire

The Subaru Ascent, a mid-size SUV known for its rugged versatility, comes with a temporary, compact spare tire which is typically smaller than the vehicle's regular tires. This spare tire is designed for temporary and emergency use, allowing the driver to reach a safe location or the nearest automotive repair shop to have the regular tire replaced or repaired in case of a blow-out or flat tire. The size of the Subaru Ascent's spare tire is T145/80D18 104M. However, it is always essential for Subaru Ascent owners to check their vehicle's specific spare tire size in the owner's manual or on the tire's sidewall, as it may vary slightly depending on the model year.

Subaru Ascent models manufactured from 2019 to 2025 have tires with overall diameter ranging from 29.6" to 29.7", 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 Subaru Ascent years and trims.

Listed below are compact spare tire sizes that can fit some Subaru Ascent vehicles based on acceptable tire diameter range of 28.7" to 30.6". Some Ascent 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 Subaru Ascent spare tire size designated by vehicle's manufacturer.

Spare Size	Spare Diameter
T175/90D18from $290.30	30.4"
T175/80R19from $182.97	30"
T155/80R19from $173.33	28.8"
T155/90D18from $163.99	29"
T155/90R18from $134.96	29"
T165/90D18from $115.96	29.7"
T175/90R17	29.4"
T175/90D17	29.4"
T175/80R18	29"
T175/80D18	29"
T165/90R18	29.7"
T155/80D19	28.8"
T145/80R20	29.1"
T175/90R18	30.4"

Spare Tire for Subaru Ascent

Discover spare tire solutions for your Subaru Ascent based on model year. Generally, spare tire size has to be within 3% of the overall diameter of the original equipment tire size. Subaru Ascent 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.