Pontiac Bonneville Spare Tire

The Pontiac Bonneville, a classic American-made automobile, typically comes equipped with a spare tire located in the trunk of the vehicle as a standard safety feature. The spare tire, often referred to as a "donut", is intended for temporary use in case of a flat tire or tire blow out, to be utilized just until the car can reach a service station or tire shop for a full-sized replacement. The size of the spare tire for a Pontiac Bonneville may vary based on the specific model year of the vehicle but, on average, they are usually smaller than the normal tires – in many Bonneville models, the common spare tire size is T125/70D15, with the 'T' indicating a temporary spare tire (or "donut"), '125' denoting the width of the tire in millimeters, '70' being the aspect ratio, 'D' detailing the tire ' s construction type (in this case, diagonal), and '15' signifying the wheel diameter in inches. It is important to note that, while convenient for short-term use, these smaller spare tires can impact the vehicle's performance like speed, traction, and cornering, and hence should be replaced with a regular-sized tire as soon as possible.

Pontiac Bonneville models manufactured from 1990 to 2005 have tires with overall diameter ranging from 26" to 27.3", 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 Pontiac Bonneville years and trims.

Listed below are compact spare tire sizes that can fit some Pontiac Bonneville vehicles based on acceptable tire diameter range of 25.2" to 28.1". Some Bonneville 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 Pontiac Bonneville spare tire size designated by vehicle's manufacturer.

Spare Size	Spare Diameter
T145/60R20from $271.36	26.9"
T145/80D18from $257.05	27.1"
T155/70R19from $237.96	27.6"
T155/70R18from $178.60	26.6"
T155/70D17from $175.43	25.6"
T165/80R17from $166.85	27.4"
T155/60R18from $164.19	25.3"
T135/90R17from $158.19	26.6"
T135/90R16from $155.20	25.6"
T135/70R19from $147.99	26.5"
T145/65R20from $146.43	27.4"
T155/70R17from $139.76	25.6"
T135/70D18from $135.05	25.5"
T135/80R17from $133.66	25.5"
T135/70R18from $131.66	25.5"
T135/80R18from $125.96	26.5"
T165/80D17from $124.93	27.4"
T145/70D18from $118.97	26"
T145/85R18from $118.73	27.7"
T115/95R17from $117.54	25.6"
T155/90D17from $114.99	28"
T135/80D17from $112.58	25.5"
T155/80D17from $97.90	26.8"
T155/90D16from $92.99	27"
T145/90D16from $88.99	26.3"
T145/80D17from $81.99	26.1"
T155/80R16	25.7"
T155/80R17	26.8"
T155/80R18	27.8"
T155/90R16	27"
T155/90R17	28"
T165/60R20	27.8"
T165/70D17	26.1"
T165/70D18	27.1"
T165/70R17	26.1"
T165/70R18	27.1"
T185/55D18	26"
T185/55R18	26"
T185/60D17	25.7"
T185/60R17	25.7"
T155/80D18	27.8"
T155/80D16	25.7"
T155/70D18	26.6"
T135/60D19	25.4"
T135/60R19	25.4"
T135/80D18	26.5"
T135/90D16	25.6"
T135/90D17	26.6"
T145/65D18	25.4"
T145/65R18	25.4"
T145/70R18	26"
T145/80R17	26.1"
T145/80R18	27.1"
T145/90D17	27.3"
T145/90R16	26.3"
T145/90R17	27.3"
T125/70R19	25.9"

Spare Tire for Pontiac Bonneville

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