2021 GMC Sierra Trims
2WD Crew Cab Long Box
2WD Crew Cab Long Box DRW
2WD Crew Cab Long Box DRW SLE
2WD Crew Cab Long Box DRW SLT
2WD Crew Cab Long Box SLE
2WD Crew Cab Long Box SLT
2WD Crew Cab Standard Box
2WD Crew Cab Standard Box SLE
2WD Crew Cab Standard Box SLT
2WD Double Cab Long Box
2WD Double Cab Long Box DRW
2WD Double Cab Long Box DRW SLE
2WD Double Cab Long Box SLE
2WD Regular Cab Long Box
2WD Regular Cab Long Box DRW
2WD Regular Cab Long Box DRW SLE
2WD Regular Cab Long Box SLE
4WD Crew Cab Long Box
4WD Crew Cab Long Box AT4
4WD Crew Cab Long Box DRW
4WD Crew Cab Long Box DRW SLE
4WD Crew Cab Long Box DRW SLT
4WD Crew Cab Long Box SLE
4WD Crew Cab Long Box SLT
4WD Crew Cab Standard Box
4WD Crew Cab Standard Box AT4
4WD Crew Cab Standard Box SLE
4WD Crew Cab Standard Box SLT
4WD Double Cab Long Box
4WD Double Cab Long Box DRW
4WD Double Cab Long Box DRW SLE
4WD Double Cab Long Box SLE
4WD Regular Cab Long Box
4WD Regular Cab Long Box DRW
4WD Regular Cab Long Box DRW SLE
4WD Regular Cab Long Box SLE
Engine Displacement
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
6.6L V8, Optional 6.6L Duramax V8
Horsepower (HP)
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
401 hp
Torque (lb-ft)
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
464 ft-lbs
Tank capacity
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
36 gal
Transmission
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 With Manual Mode
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 With Manual Mode
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 With Manual Mode
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 With Manual Mode
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 With Manual Mode
Automatic With Manual Mode
Drivetrain
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
RWD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD
4WD