GMC Sierra Engine Specifications
The 2026 GMC Sierra is offered with 2.7L–6.2L engines in 6 and 8 and 4-cylinder form, per EPA fuel-economy records.
Latest model year (2026):
The GMC Sierra is available with — and Automatic (A1) (4-Wheel Drive).
GMC Sierra Engine Specs — All Years
| Year | Trim | Cylinders | Displ. | Transmission | Drive | Fuel Type | Vehicle Class |
|---|---|---|---|---|---|---|---|
| 2026Config 1 of 24 | Auto (A1) | — | — | Automatic (A1) | 4-Wheel Drive | Electricity | Standard Pickup Trucks 4WD |
| 2026Config 2 of 24 | Auto (A1) | — | — | Automatic (A1) | 4-Wheel Drive | Electricity | Standard Pickup Trucks 4WD |
| 2026Config 3 of 24 | Auto (A1) | — | — | Automatic (A1) | 4-Wheel Drive | Electricity | Standard Pickup Trucks 4WD |
| 2026Config 4 of 24 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2026Config 5 of 24 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2026Config 6 of 24 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2026Config 7 of 24 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | Rear-Wheel Drive | Diesel | Standard Pickup Trucks 2WD |
| 2026Config 8 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 9 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 10 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2026Config 11 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2026Config 12 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 4WD |
| 2026Config 13 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 2WD |
| 2026Config 14 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 15 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 16 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 17 of 24 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 18 of 24 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 19 of 24 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 20 of 24 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 21 of 24 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 22 of 24 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2026Config 23 of 24 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2026Config 24 of 24 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2025Config 1 of 23 | Auto (A1) | — | — | Automatic (A1) | 4-Wheel Drive | Electricity | Standard Pickup Trucks 4WD |
| 2025Config 2 of 23 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2025Config 3 of 23 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | Rear-Wheel Drive | Diesel | Standard Pickup Trucks 2WD |
| 2025Config 4 of 23 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2025Config 5 of 23 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2025Config 6 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 4WD |
| 2025Config 7 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 8 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 9 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 10 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 11 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 12 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 2WD |
| 2025Config 13 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2025Config 14 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2025Config 15 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 16 of 23 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 17 of 23 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 18 of 23 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 19 of 23 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 20 of 23 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2025Config 21 of 23 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2025Config 22 of 23 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2025Config 23 of 23 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 1 of 24 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | Rear-Wheel Drive | Diesel | Standard Pickup Trucks 2WD |
| 2024Config 2 of 24 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2024Config 3 of 24 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2024Config 4 of 24 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2024Config 5 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 6 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2024Config 7 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 2WD |
| 2024Config 8 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 4WD |
| 2024Config 9 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 10 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2024Config 11 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2024Config 12 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2024Config 13 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 14 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 15 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 16 of 24 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 17 of 24 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 18 of 24 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 19 of 24 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 20 of 24 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2024Config 21 of 24 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 22 of 24 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 23 of 24 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2024Config 24 of 24 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2023Config 1 of 22 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2023Config 2 of 22 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2023Config 3 of 22 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | Rear-Wheel Drive | Diesel | Standard Pickup Trucks 2WD |
| 2023Config 4 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2023Config 5 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 4WD |
| 2023Config 6 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 2WD |
| 2023Config 7 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2023Config 8 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2023Config 9 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2023Config 10 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2023Config 11 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2023Config 12 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2023Config 13 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2023Config 14 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2023Config 15 of 22 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2023Config 16 of 22 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2023Config 17 of 22 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2023Config 18 of 22 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2023Config 19 of 22 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2023Config 20 of 22 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2023Config 21 of 22 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2023Config 22 of 22 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 1 of 34 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | Rear-Wheel Drive | Diesel | Standard Pickup Trucks 2WD |
| 2022Config 2 of 34 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2022Config 3 of 34 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2022Config 4 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 5 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2022Config 6 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2022Config 7 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 8 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 9 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 10 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 4WD |
| 2022Config 11 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 4WD |
| 2022Config 12 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 13 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 14 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | Rear-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 2WD |
| 2022Config 15 of 34 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 16 of 34 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 17 of 34 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 18 of 34 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 19 of 34 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 20 of 34 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 21 of 34 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2022Config 22 of 34 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 23 of 34 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 24 of 34 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2022Config 25 of 34 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 26 of 34 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 27 of 34 | Auto 8-spd, 4 cyl, 2.7 L | 4 | 2.7L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2022Config 28 of 34 | Auto 8-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 29 of 34 | Auto 8-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 2WD |
| 2022Config 30 of 34 | Auto 8-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 31 of 34 | Auto 8-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2022Config 32 of 34 | Auto 8-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 8-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2022Config 33 of 34 | Auto 8-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2022Config 34 of 34 | Auto 8-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 8-spd | 4-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 4WD |
| 2021Config 1 of 23 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | 4-Wheel Drive | Diesel | Standard Pickup Trucks 4WD |
| 2021Config 2 of 23 | Auto 10-spd, 6 cyl, 3.0 L | 6 | 3.0L | Automatic 10-spd | Rear-Wheel Drive | Diesel | Standard Pickup Trucks 2WD |
| 2021Config 3 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 4 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 5 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 6 of 23 | Auto 10-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 10-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 7 of 23 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 8 of 23 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 9 of 23 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 10 of 23 | Auto 10-spd, 8 cyl, 6.2 L | 8 | 6.2L | Automatic 10-spd | 4-Wheel Drive | Premium Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 11 of 23 | Auto 6-spd, 6 cyl, 4.3 L | 6 | 4.3L | Automatic 6-spd | 4-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 4WD |
| 2021Config 12 of 23 | Auto 6-spd, 6 cyl, 4.3 L | 6 | 4.3L | Automatic 6-spd | Rear-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 2WD |
| 2021Config 13 of 23 | Auto 6-spd, 6 cyl, 4.3 L | 6 | 4.3L | Automatic 6-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2021Config 14 of 23 | Auto 6-spd, 6 cyl, 4.3 L | 6 | 4.3L | Automatic 6-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 15 of 23 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | 4-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 4WD |
| 2021Config 16 of 23 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2021Config 17 of 23 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2021Config 18 of 23 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 19 of 23 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | 4-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 4WD |
| 2021Config 20 of 23 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | Rear-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 2WD |
| 2021Config 21 of 23 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | Rear-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 2WD |
| 2021Config 22 of 23 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | Rear-Wheel Drive | Regular Gasoline | Standard Pickup Trucks 2WD |
| 2021Config 23 of 23 | Auto 6-spd, 8 cyl, 5.3 L | 8 | 5.3L | Automatic 6-spd | 4-Wheel Drive | Regular Gasoline | Special Purpose Vehicle 4WD |
Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.
GMC Sierra data analysis
How GMC Sierra engine displacement varies
Across 150 configurations recorded for the 2021 through 2026 GMC Sierra, engine displacement runs from 2.7 litres to 6.2 litres. The strongest figure belongs to the 2026 GMC Sierra (SIDI) at 2.7 litres, and the weakest to the 2021 car (SIDI; Stop-Start) at 6.2 litres — a spread of 56%. A gap that wide means the model year and configuration you buy matter more than the nameplate does: quoting a single number for the GMC Sierra would be misleading.
What changed for 2026
Average engine displacement for the 2026 GMC Sierra is 4.4 litres, against 4.4 litres for the 2025 car — it held flat. A carry-over year like this usually means no powertrain or structural change, so an older example is the cheaper way into the same specification.
How to read this GMC Sierra data
This page lists every 2021 through 2026 GMC Sierra record we hold for this measurement — 150 rows in total, one per configuration and model year rather than a single headline figure. Figures are published as the source agency records them: we do not round, average or interpolate missing years, and a year that is absent from the table is a year with no published measurement rather than a zero. Where a manufacturer offered several drivetrains or body styles in the same year, each appears on its own row, because those variants rarely share the same numbers.
Configurations behind these GMC Sierra numbers
The 2021 through 2026 GMC Sierra entries here cover variants including Auto 10-spd, 6 cyl, 3.0 L, SIDI, SIDI; FFV, with Sport Mode, SIDI; Municipal, SIDI; with Sport Mode, SIDI; With Sport Mode and SIDI; Municipal. 2022 is the busiest model year in the record with 34 separate measured configurations, which is why a single quoted engine displacement figure for that year is rarely the one that matches the car in front of you. Match the row to the exact drivetrain, body style and engine on the window sticker or VIN before relying on the number, and use the comparison links below to see how those same configurations line up against rival models.
Where these GMC Sierra figures come from
Every value on this page is loaded from federal open data — EPA fuel economy submissions, NHTSA vehicle and crash-test records, and manufacturer specification filings — rather than dealer listings or copied editorial content. The GMC Sierra record refreshes as the agencies publish, which typically means new model-year rows appear in the autumn and crash-test results follow through the model year as vehicles are tested. Because certification data is filed per configuration, treat any single headline number for this vehicle with caution: the figure that applies to a specific car depends on its engine, drivetrain, body style and model year, all of which are listed separately above. If a number here disagrees with a brochure, the brochure is usually quoting the best available configuration rather than the one being sold.
Frequently Asked Questions About Sierra Engine Specs
What engine does the GMC Sierra have?
The GMC Sierra is available with various cylinder engine. Transmission and drivetrain options vary by trim. See the full table above.
Is the GMC Sierra available with all-wheel drive?
Check the drive column in the table above to see available drivetrain configurations.
Engine Specs for other GMC models
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