2021 GMC Sierra 2500HD Gas Tank Size
Gas tank size for 2021 GMC Sierra 2500HD. Fuel tank capacity in gallons and litres.
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| Trim | Engine Type | Gallons (US) | Gallons (UK) | Litres |
|---|---|---|---|---|
| Denali 4dr Crew Cab 4WD SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| AT4 4dr Crew Cab 4WD LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| AT4 4dr Crew Cab 4WD SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| Denali 4dr Crew Cab 4WD LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLT 4dr Double Cab 4WD LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLT 4dr Crew Cab 4WD SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLT 4dr Double Cab SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLT 4dr Crew Cab LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLT 4dr Crew Cab 4WD LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLT 4dr Double Cab LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLT 4dr Crew Cab SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLT 4dr Double Cab 4WD SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLE 4dr Double Cab LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLE 4dr Crew Cab 4WD SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLE 4dr Crew Cab SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLE 4dr Double Cab 4WD LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLE 4dr Double Cab 4WD SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| 4dr Double Cab LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| 2dr Regular Cab LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| 4dr Crew Cab 4WD LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| 4dr Double Cab 4WD SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| 4dr Crew Cab 4WD SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| 4dr Double Cab 4WD LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| 4dr Crew Cab SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| 4dr Double Cab SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLE 4dr Crew Cab LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| 4dr Crew Cab LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| 2dr Regular Cab 4WD LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLE 2dr Regular Cab 4WD LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLE 4dr Crew Cab 4WD LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLE 4dr Double Cab SB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
| SLE 2dr Regular Cab LB(6.6L V8 6-speed Automatic) | Gas | 36 | 30 | 137 |
GMC Sierra 2500HD 2021