2018 GMC Sierra 1500 Spare Tire
The GMC Sierra 1500 spare tire is a crucial component that lends peace of mind to the driver, and ensures security in case of a tire puncture or damage while on the road. The specific size of spare tire for this model can vary depending on the year and sub-model of the pickup, however, it usually comes with a full size non-matching spare tire. The typical size for many of the GMC Sierra 1500 models is around a 255/70R17, which offers a precise fit for the vehicle. It's always recommended to check the owner's manual or the tire information placard on the driver's side door jamb for the exact spare tire size and type specific to your truck.
2018 GMC Sierra 1500 comes with 7 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 GMC dealership to confirm the correct 2018 GMC Sierra 1500 spare tire size.
265/65R18
No matching compact spares. Using a full-size spare tire is recommended.
LT265/70R17
No matching compact spares. Using a full-size spare tire is recommended.
P255/70R17
P255/70R17 tire has a diameter of 31.1". These temporary spare tires fit the acceptable tire diameter range of 30.2" to 32".
| Spare Size | Spare Diameter | Diameter Differential |
|---|---|---|
| T175/90D18from $290.30 | 30.4" | -2.3% |
| T175/90R18 | 30.4" | -2.3% |
P265/65R18
No matching compact spares. Using a full-size spare tire is recommended.
P265/70R17
No matching compact spares. Using a full-size spare tire is recommended.
P275/55R20
No matching compact spares. Using a full-size spare tire is recommended.
P285/45R22
No matching compact spares. Using a full-size spare tire is recommended.
More GMC Sierra 1500 Spare Tires
- 2025 GMC Sierra 1500 Spare Tire
- 2024 GMC Sierra 1500 Spare Tire
- 2023 GMC Sierra 1500 Spare Tire
- 2022 GMC Sierra 1500 Spare Tire
- 2021 GMC Sierra 1500 Spare Tire
- 2020 GMC Sierra 1500 Spare Tire
- 2019 GMC Sierra 1500 Spare Tire
- 2017 GMC Sierra 1500 Spare Tire
- 2016 GMC Sierra 1500 Spare Tire
- 2015 GMC Sierra 1500 Spare Tire
- 2014 GMC Sierra 1500 Spare Tire
- 2013 GMC Sierra 1500 Spare Tire
- 2012 GMC Sierra 1500 Spare Tire
- 2011 GMC Sierra 1500 Spare Tire
- 2010 GMC Sierra 1500 Spare Tire
- 2009 GMC Sierra 1500 Spare Tire
- 2008 GMC Sierra 1500 Spare Tire
- 2007 GMC Sierra 1500 Spare Tire
- 2006 GMC Sierra 1500 Spare Tire
- 2005 GMC Sierra 1500 Spare Tire
- 2004 GMC Sierra 1500 Spare Tire
- 2003 GMC Sierra 1500 Spare Tire
- 2002 GMC Sierra 1500 Spare Tire
- 2001 GMC Sierra 1500 Spare Tire
- 2000 GMC Sierra 1500 Spare Tire
- 1999 GMC Sierra 1500 Spare Tire
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.