2003 Infiniti M45 Spare Tire
The Infiniti M45 is equipped with a compact temporary spare tire, also known as a "donut" spare, which is specifically designed for temporary or emergency use; it ' s intended to get the vehicle to a safe location or repair shop. The size of the spare tire varies depending on the model year of the Infiniti M45; however, for most models, the size is typically smaller than the vehicle's standard tire size, with a typical diameter size of around 17 or 18 inches. The donut spare for Infiniti M45 is not suitable for extensive distance or high-speed driving, as they are designed to endure only short distances and slower speeds.
2003 Infiniti M45 comes with 2 OEM tire size options. Select the original equipment the tire size installed on your vehicle to see all spare tires that have roughly the same tire diameter and can be used as a temporary replacement in the event of a flat tire. Remember that load carrying capacity of the spare tire must be the same or higher than the load carrying capacity of the original equipment tires in order to safely support the weight of your vehicle. Refer to vehicle owner's manual or contact Infiniti dealership to confirm the correct 2003 Infiniti M45 spare tire size.
235/45R18
235/45R18 tire has a diameter of 26.3". These temporary spare tires fit the acceptable tire diameter range of 25.5" to 27.1".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T145/60R20from $271.36 | 26.9" | 2.3% |
| T155/70R18from $178.60 | 26.6" | 1.1% |
| T155/70D17from $175.43 | 25.6" | -2.7% |
| T135/90R17from $158.19 | 26.6" | 1.1% |
| T135/90R16from $155.20 | 25.6" | -2.7% |
| T135/70R19from $147.99 | 26.5" | 0.8% |
| T155/70R17from $139.76 | 25.6" | -2.7% |
| T135/80R18from $125.96 | 26.5" | 0.8% |
| T145/70D18from $118.97 | 26" | -1.1% |
| T115/95R17from $117.54 | 25.6" | -2.7% |
| T155/80D17from $97.90 | 26.8" | 1.9% |
| T155/90D16from $92.99 | 27" | 2.7% |
| T145/90D16from $88.99 | 26.3" | 0% |
| T145/80D17from $81.99 | 26.1" | -0.8% |
| T155/80R17 | 26.8" | 1.9% |
| T155/90R16 | 27" | 2.7% |
| T165/70D17 | 26.1" | -0.8% |
| T165/70R17 | 26.1" | -0.8% |
| T185/55D18 | 26" | -1.1% |
| T185/55R18 | 26" | -1.1% |
| T185/60D17 | 25.7" | -2.3% |
| T155/80R16 | 25.7" | -2.3% |
| T155/80D16 | 25.7" | -2.3% |
| T155/70D18 | 26.6" | 1.1% |
| T145/90R16 | 26.3" | 0% |
| T145/80R17 | 26.1" | -0.8% |
| T145/70R18 | 26" | -1.1% |
| T135/90D17 | 26.6" | 1.1% |
| T135/90D16 | 25.6" | -2.7% |
| T135/80D18 | 26.5" | 0.8% |
| T125/70R19 | 25.9" | -1.5% |
| T185/60R17 | 25.7" | -2.3% |
P235/45R18
P235/45R18 tire has a diameter of 26.3". These temporary spare tires fit the acceptable tire diameter range of 25.5" to 27.1".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T145/60R20from $271.36 | 26.9" | 2.3% |
| T155/70R18from $178.60 | 26.6" | 1.1% |
| T155/70D17from $175.43 | 25.6" | -2.7% |
| T135/90R17from $158.19 | 26.6" | 1.1% |
| T135/90R16from $155.20 | 25.6" | -2.7% |
| T135/70R19from $147.99 | 26.5" | 0.8% |
| T155/70R17from $139.76 | 25.6" | -2.7% |
| T135/80R18from $125.96 | 26.5" | 0.8% |
| T145/70D18from $118.97 | 26" | -1.1% |
| T115/95R17from $117.54 | 25.6" | -2.7% |
| T155/80D17from $97.90 | 26.8" | 1.9% |
| T155/90D16from $92.99 | 27" | 2.7% |
| T145/90D16from $88.99 | 26.3" | 0% |
| T145/80D17from $81.99 | 26.1" | -0.8% |
| T155/80R17 | 26.8" | 1.9% |
| T155/90R16 | 27" | 2.7% |
| T165/70D17 | 26.1" | -0.8% |
| T165/70R17 | 26.1" | -0.8% |
| T185/55D18 | 26" | -1.1% |
| T185/55R18 | 26" | -1.1% |
| T185/60D17 | 25.7" | -2.3% |
| T155/80R16 | 25.7" | -2.3% |
| T155/80D16 | 25.7" | -2.3% |
| T155/70D18 | 26.6" | 1.1% |
| T145/90R16 | 26.3" | 0% |
| T145/80R17 | 26.1" | -0.8% |
| T145/70R18 | 26" | -1.1% |
| T135/90D17 | 26.6" | 1.1% |
| T135/90D16 | 25.6" | -2.7% |
| T135/80D18 | 26.5" | 0.8% |
| T125/70R19 | 25.9" | -1.5% |
| T185/60R17 | 25.7" | -2.3% |
More Infiniti M45 Spare Tires
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.