2021 GMC Sierra Trims
2WD Crew Cab Short Box
2WD Crew Cab Short Box Elevation
2WD Crew Cab Short Box SLE
2WD Crew Cab Short Box SLT
2WD Double Cab Standard Box
2WD Double Cab Standard Box Elevation
2WD Double Cab Standard Box SLE
2WD Regular Cab Long Box
4WD Crew Cab Short Box
4WD Crew Cab Short Box AT4
4WD Crew Cab Short Box Elevation
4WD Crew Cab Short Box SLE
4WD Crew Cab Short Box SLT
4WD Crew Cab Standard Box
4WD Crew Cab Standard Box AT4
4WD Crew Cab Standard Box Elevation
4WD Crew Cab Standard Box SLE
4WD Crew Cab Standard Box SLT
4WD Crew Cab Std Box Elevation 3VL
4WD Double Cab Standard Box
4WD Double Cab Standard Box Elevation
4WD Double Cab Standard Box SLE
4WD Double Cab Std Box Elevation 3VL
4WD Regular Cab Long Box
Engine Displacement
4.3L V6, Optional 2.7L inline 4-cylinder, Optional 5.3L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder, Optional 3.0L inline 6-cylinder, Optional 5.3L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder, Optional 3.0L inline 6-cylinder, Optional 5.3L EcoTec3 V8
5.3L V8, Optional 3.0L inline 6-cylinder
4.3L V6, Optional 2.7L inline 4-cylinder, Optional 5.3L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder, Optional 3.0L inline 6-cylinder, Optional 5.3L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder, Optional 5.3L EcoTec3 V8, Optional 3.0L inline 6-cylinder
4.3L V6, Optional 5.3L EcoTec3 V8, Optional 2.7L inline 4-cylinder
4.3L V6, Optional 5.3L EcoTec3 V8, Optional 2.7L inline 4-cylinder
5.3L V8, Optional 3.0L inline 6-cylinder, Optional 6.2L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder, Optional 3.0L inline 6-cylinder, Optional 5.3L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder, Optional 3.0L inline 6-cylinder, Optional 5.3L EcoTec3 V8
5.3L V8, Optional 6.2L EcoTec3 V8, Optional 3.0L inline 6-cylinder
4.3L V6, Optional 2.7L inline 4-cylinder, Optional 5.3L EcoTec3 V8
3.0L inline 6-cylinder, Optional 6.2L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder, Optional 3.0L inline 6-cylinder, Optional 5.3L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder, Optional 3.0L inline 6-cylinder, Optional 5.3L EcoTec3 V8
5.3L V8, Optional 3.0L inline 6-cylinder, Optional 6.2L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder
4.3L V6, Optional 5.3L EcoTec3 V8, Optional 2.7L inline 4-cylinder
2.7L EcoTec3 inline 4-cylinder, Optional 3.0L inline 6-cylinder, Optional 5.3L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder, Optional 3.0L inline 6-cylinder, Optional 5.3L EcoTec3 V8
2.7L EcoTec3 inline 4-cylinder
4.3L V6, Optional 2.7L inline 4-cylinder, Optional 5.3L EcoTec3 V8
Horsepower (HP)
285 hp
310 hp
310 hp
355 hp
285 hp
310 hp
310 hp
285 hp
285 hp
355 hp
310 hp
310 hp
355 hp
285 hp
277 hp
310 hp
310 hp
355 hp
310 hp
285 hp
310 hp
310 hp
310 hp
285 hp
Torque (lb-ft)
305 ft-lbs
348 ft-lbs
348 ft-lbs
383 ft-lbs
305 ft-lbs
348 ft-lbs
348 ft-lbs
305 ft-lbs
305 ft-lbs
383 ft-lbs
348 ft-lbs
348 ft-lbs
383 ft-lbs
305 ft-lbs
460 ft-lbs
348 ft-lbs
348 ft-lbs
383 ft-lbs
348 ft-lbs
305 ft-lbs
348 ft-lbs
348 ft-lbs
348 ft-lbs
305 ft-lbs
Tank capacity
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
34 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
26 gal
34 gal
Transmission
Automatic, Optional Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic, Optional Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic, Optional Automatic With Manual Mode
Automatic, Optional Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic, Optional Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic, Optional Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic With Manual Mode
Automatic, Optional Automatic With Manual Mode
Drivetrain
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD