GMC Sierra 2500HD Gas Tank Size and Capacity by Year
26.0–36.0gal · 98–136 L
Across 26 model years (2001–2026), the GMC Sierra 2500HD has used tanks from 26.0–36.0 gallons. The 2026 model holds 36.0 gallons.
Pick your model year
- 2026
- 2025
- 2024
- 2023
- 2022
- 2021
- 2020
- 2019
- 2018
- 2017
- 2016
- 2015
- 2014
- 2013
- 2012
- 2011
- 2010
- 2009
- 2008
- 2007
- 2006
- 2005
- 2004
- 2003
- 2002
- 2001
How the tank changed over the years
GMC Sierra 2500HD tank size by generation
Model years with the same tank sizes, grouped. A change usually marks a new generation or a redesign.
GMC Sierra 2500HD tank size by year
| Year | Tank | Liters | Best highway range | Trims |
|---|---|---|---|---|
| 2026 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 24 |
| 2025 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 35 |
| 2024 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 31 |
| 2023 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 32 |
| 2022 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 32 |
| 2021 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 32 |
| 2020 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 32 |
| 2019 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 21 |
| 2018 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 30 |
| 2017 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 30 |
| 2016 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 30 |
| 2015 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 30 |
| 2014 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 18 |
| 2013 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 30 |
| 2012 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 30 |
| 2011 GMC Sierra 2500HD | 36.0 gallons | 136 L | Not rated | 30 |
| 2010 GMC Sierra 2500HD | 26.0–34.0 gallons | 98–129 L | Not rated | 28 |
| 2009 GMC Sierra 2500HD | 26.0–34.0 gallons | 98–129 L | Not rated | 28 |
| 2008 GMC Sierra 2500HD | 26.0–34.0 gallons | 98–129 L | Not rated | 36 |
| 2007 GMC Sierra 2500HD | 26.0–34.0 gallons | 98–129 L | Not rated | 36 |
| 2006 GMC Sierra 2500HD | 26.0–34.0 gallons | 98–129 L | Not rated | 46 |
| 2005 GMC Sierra 2500HD | 26.0–34.0 gallons | 98–129 L | 408 mi | 38 |
| 2004 GMC Sierra 2500HD | 26.0–34.0 gallons | 98–129 L | Not rated | 38 |
| 2003 GMC Sierra 2500HD | 26.0–34.0 gallons | 98–129 L | Not rated | 22 |
| 2002 GMC Sierra 2500HD | 26.0–34.0 gallons | 98–129 L | Not rated | 30 |
| 2001 GMC Sierra 2500HD | 26.0–34.0 gallons | 98–129 L | Not rated | 28 |
GMC Sierra 2500HD fuel system recalls by year
NHTSA lists fuel-system recalls for 3 GMC Sierra 2500HD model years. Each year's page has the details, the risk and the free remedy.
Frequently asked questions
What size gas tank does the GMC Sierra 2500HD have?
The 2026 GMC Sierra 2500HD holds 36.0 gallons. Older years range from 26.0–36.0 gallons; the table has every year.
Has the tank size changed over the years?
Yes. The largest tank changed in 2011.