Buick Regal Spare Tire Fitment Guide
The Buick Regal used 5x115 mm, 5x120 mm and 5x4.75" (5x120.7 mm) bolt pattern variations from 1978 to 2020 along with tire diameters ranging from 25.3" to 27.3" tall. Using a temporary compact spare tire with a diameter close to the standard tire has many benefits, especially for modern vehicles with larger brake calipers and anti-lock brakes or traction control systems.
The tire diameter and the wheel diameter clearance have been taken into account for the specific Buick Regal years and options. In this case, 125/80R18, 145/80R17, 135/80R18 and 145/60R20 spare tire sizes are used to avoid vehicle components while closely matching the original tire size diameters. We've provided a breakdown by vehicle generation and model specifics to help you find the correct Buick Regal spare tire.
2018-2020 Buick Regal Spare Tires
This generation of the Buick Regal began in 2018 and was available through 2020. There were multiple versions manufactured in this year range and have specific spare tire and wheel solutions for each one. The Standard Sportback, Sportback GS, and TourX models are listed individually.
| Year | Make | Model | Bolt Pattern | Tire Diameters | Recommended Spare Tire |
|---|---|---|---|---|---|
| 2020 | Buick | Regal Sportback | 5x115 mm | 26.7" | 145/80R17 | 26.1" |
| Regal Sportback GS | 5x115 mm | 26.7" | 145/60R20 | 26.9" | ||
| Regal TourX | 5x115 mm | 27.3" | 145/60R20 | 26.9" | ||
| 2019 | Buick | Regal Sportback | 5x115 mm | 26.7" | 145/80R17 | 26.1" |
| Regal Sportback GS | 5x115 mm | 26.7" | 145/60R20 | 26.9" | ||
| Regal TourX | 5x115 mm | 27.3" | 145/60R20 | 26.9" | ||
| 2018 | Buick | Regal Sportback | 5x115 mm | 26.7" | 145/80R17 | 26.1" |
| Regal Sportback GS | 5x115 mm | 26.7" | 145/60R20 | 26.9" | ||
| Regal TourX | 5x115 mm | 27.3" | 145/60R20 | 26.9" |
2011-2017 Buick Regal Spare Tires
This generation of the Buick Regal began in 2011 and was available through 2017. All the models for these years use the same spare tire and wheel solution. The Standard models include 2.0L Turbo versions. The eAssist and GS models are listed individually.
Although there was a facelift redesign introduced in 2014, the spare tire requirements remained the same.
| Year | Make | Model | Bolt Pattern | Tire Diameters | Recommended Spare Tire |
|---|---|---|---|---|---|
| 2017 | Buick | Regal | 5x120 mm | 27.3" | 135/80R18 | 26.5" |
| Regal eAssist | 5x120 mm | 26.3-27.3" | 135/80R18 | 26.5" | ||
| Regal GS | 5x120 mm | 26.7" | 135/80R18 | 26.5" | ||
| 2016 | Buick | Regal | 5x120 mm | 26.7-27.3" | 135/80R18 | 26.5" |
| Regal eAssist | 5x120 mm | 26.3-27.3" | 135/80R18 | 26.5" | ||
| Regal GS | 5x120 mm | 26.7-27" | 135/80R18 | 26.5" | ||
| 2015 | Buick | Regal | 5x120 mm | 26.7-27.3" | 135/80R18 | 26.5" |
| Regal eAssist | 5x120 mm | 26.3-27.3" | 135/80R18 | 26.5" | ||
| Regal GS | 5x120 mm | 26.7-27" | 135/80R18 | 26.5" | ||
| 2014 | Buick | Regal | 5x120 mm | 26.7-27.3" | 135/80R18 | 26.5" |
| Regal eAssist | 5x120 mm | 26.3-27.3" | 135/80R18 | 26.5" | ||
| Regal GS | 5x120 mm | 26.7-27" | 135/80R18 | 26.5" | ||
| 2013 | Buick | Regal | 5x120 mm | 26.7-27.3" | 135/80R18 | 26.5" |
| Regal eAssist | 5x120 mm | 26.3" | 135/80R18 | 26.5" | ||
| Regal GS | 5x120 mm | 26.7-27" | 135/80R18 | 26.5" | ||
| 2012 | Buick | Regal | 5x120 mm | 26.7-27.3" | 135/80R18 | 26.5" |
| Regal eAssist | 5x120 mm | 26.3" | 135/80R18 | 26.5" | ||
| Regal GS | 5x120 mm | 26.7-27" | 135/80R18 | 26.5" | ||
| 2011 | Buick | Regal | 5x120 mm | 26.7-27.3" | 135/80R18 | 26.5" |
| Regal GS | 5x120 mm | 26.7-27" | 135/80R18 | 26.5" |
1997-2004 Buick Regal Spare Tires
This generation of the Buick Regal began in 1997 and was available through 2004. All the models for these years use the same spare tire and wheel solution. The Standard models include Performance Package versions and the GS models are listed individually.
| Year | Make | Model | Bolt Pattern | Tire Diameters | Recommended Spare Tire |
|---|---|---|---|---|---|
| 2004 | Buick | Regal | 5x115 mm | 26.6-26.9" | 145/80R17 | 26.1" |
| Regal GS | 5x115 mm | 26.6" | 145/80R17 | 26.1" | ||
| 2003 | Buick | Regal | 5x115 mm | 26.6-26.9" | 145/80R17 | 26.1" |
| Regal GS | 5x115 mm | 26.6" | 145/80R17 | 26.1" | ||
| 2002 | Buick | Regal | 5x115 mm | 26.6-26.9" | 145/80R17 | 26.1" |
| Regal GS | 5x115 mm | 26.6" | 145/80R17 | 26.1" | ||
| 2001 | Buick | Regal | 5x115 mm | 26.6-26.9" | 145/80R17 | 26.1" |
| Regal GS | 5x115 mm | 26.6" | 145/80R17 | 26.1" | ||
| 2000 | Buick | Regal | 5x115 mm | 26.6-26.9" | 145/80R17 | 26.1" |
| Regal GS | 5x115 mm | 26.6" | 145/80R17 | 26.1" | ||
| 1999 | Buick | Regal | 5x115 mm | 26.6-26.9" | 145/80R17 | 26.1" |
| Regal GS | 5x115 mm | 26.6" | 145/80R17 | 26.1" | ||
| 1998 | Buick | Regal | 5x115 mm | 26.9" | 145/80R17 | 26.1" |
| Regal GS | 5x115 mm | 26.6" | 145/80R17 | 26.1" | ||
| 1997 | Buick | Regal | 5x115 mm | 26.3" | 145/80R17 | 26.1" |
| Regal GS | 5x115 mm | 26.3-26.6" | 145/80R17 | 26.1" |
1988-1996 Buick Regal Spare Tires
This generation of the Buick Regal began in 1988 and was available through 1996. All the models for these years use the same spare tire and wheel solution. The Standard and Gran Sport models are listed individually.
| Year | Make | Model | Bolt Pattern | Tire Diameters | Recommended Spare Tire |
|---|---|---|---|---|---|
| 1996 | Buick | Regal | 5x115 mm | 26.3" | 125/80R18 | 25.9" |
| Regal Gran Sport | 5x115 mm | 26.6" | 125/80R18 | 25.9" | ||
| 1995 | Buick | Regal | 5x115 mm | 26.3" | 125/80R18 | 25.9" |
| Regal Gran Sport | 5x115 mm | 26.6" | 125/80R18 | 25.9" | ||
| 1994 | Buick | Regal | 5x115 mm | 26.3" | 125/80R18 | 25.9" |
| Regal Gran Sport | 5x115 mm | 26.6" | 125/80R18 | 25.9" | ||
| 1993 | Buick | Regal | 5x115 mm | 26.3" | 125/80R18 | 25.9" |
| Regal Gran Sport | 5x115 mm | 26.6" | 125/80R18 | 25.9" | ||
| 1992 | Buick | Regal | 5x115 mm | 25.3-26.3" | 125/80R18 | 25.9" |
| Regal Gran Sport | 5x115 mm | 26.2" | 125/80R18 | 25.9" | ||
| 1991 | Buick | Regal | 5x115 mm | 25.3-26.3" | 125/80R18 | 25.9" |
| Regal Gran Sport | 5x115 mm | 26.2" | 125/80R18 | 25.9" | ||
| 1990 | Buick | Regal | 5x115 mm | 25.3-26.3" | 125/80R18 | 25.9" |
| Regal Gran Sport | 5x115 mm | 26.2" | 125/80R18 | 25.9" | ||
| 1989 | Buick | Regal | 5x115 mm | 25.3-26.3" | 125/80R18 | 25.9" |
| Regal Gran Sport | 5x115 mm | 26.2" | 125/80R18 | 25.9" | ||
| 1988 | Buick | Regal | 5x115 mm | 25.3-25.7" | 125/80R18 | 25.9" |
| Regal Gran Sport | 5x115 mm | 26.2" | 125/80R18 | 25.9" |
1978-1987 Buick Regal Spare Tires
This generation of the Buick Regal began in 1978 and was available through 1987. All the models for these years use the same spare tire and wheel solution. The Standard models include Wagon versions and the GNX models are listed individually.
There was a facelift redesign in 1981 that updated the styling, but the spare requirements stayed the same.
| Year | Make | Model | Bolt Pattern | Tire Diameters | Recommended Spare Tire |
|---|---|---|---|---|---|
| 1987 | Buick | Regal | 5x4.75" (120.7 mm) | 25.3-26" | 125/80R18 | 25.9" |
| Regal GNX | 5x4.75" (120.7 mm) | 25.6-26" | 125/80R18 | 25.9" | ||
| 1986 | Buick | Regal | 5x4.75" (120.7 mm) | 25.3-26" | 125/80R18 | 25.9" |
| 1985 | Buick | Regal | 5x4.75" (120.7 mm) | 25.3-26" | 125/80R18 | 25.9" |
| 1984 | Buick | Regal | 5x4.75" (120.7 mm) | 25.3-26" | 125/80R18 | 25.9" |
| 1983 | Buick | Regal | 5x4.75" (120.7 mm) | 25.3-25.5" | 125/80R18 | 25.9" |
| 1982 | Buick | Regal | 5x4.75" (120.7 mm) | 25.3-25.5" | 125/80R18 | 25.9" |
| 1981 | Buick | Regal | 5x4.75" (120.7 mm) | 25.3-25.5" | 125/80R18 | 25.9" |
| 1980 | Buick | Regal | 5x4.75" (120.7 mm) | 25.3-25.5" | 125/80R18 | 25.9" |
| 1979 | Buick | Regal | 5x4.75" (120.7 mm) | 25.5" | 125/80R18 | 25.9" |
| 1978 | Buick | Regal | 5x4.75" (120.7 mm) | 25.5" | 125/80R18 | 25.9" |