GMC Sierra 2500 HD battery size by year
Compare GMC Sierra 2500 HD battery group sizes by model year. Select a year to open the checked record with source notes.
| Year | Group size | Battery type | Source coverage | Page |
|---|---|---|---|---|
| 2025 | Group 48 / H6 / LN3 | AGM required | Reference | Open record → |
| 2024 | Group 48 / H6 / LN3 | Unverified | Reference | Open record → |
| 2022 | Group 48 / H6 / LN3 | AGM required | Verified fit | Open record → |
| 2019 | Group 48 / H6 / LN3 | Unverified | Reference | Open record → |
| 2018 | Group 48 / H6 / LN3 | Unverified | Reference | Open record → |
| 2017 | Group 48 / H6 / LN3 | Unverified | Reference | Open record → |
| 2016 | Varies by engine / trim | Unverified | Reference | Open record → |
| 2015 | Group 48 / H6 / LN3 | Unverified | Reference | Open record → |
| 2014 | Varies by engine / trim | Unverified | Reference | Open record → |
| 2013 | Group 48 / H6 / LN3 | Unverified | Reference | Open record → |
| 2012 | Group 48 / H6 / LN3 | Unverified | Reference | Open record → |
| 2011 | Group 48 / H6 / LN3 | Unverified | Reference | Open record → |
| 2010 | Group 48 / H6 / LN3 | Unverified | Reference | Open record → |
GMC Sierra 2500 HD battery size - frequently asked questions
- What battery size fits the GMC Sierra 2500 HD?
- Battery group size can change across GMC Sierra 2500 HD years. Select the exact year above to see the checked source-backed record.
- Can I buy only by group size?
- No. Group size is the starting point. Confirm battery type, terminal position, and retailer fitment before checkout.
Look up a specific GMC Sierra 2500 HD year
Select a model year to open the exact checked battery size record before ordering.