Skip to main content

2021 GMC Sierra 1500 AT4 specs & colors

MSRP
2WD Reg Cab 140"
$30,100
2WD Double Cab 147"
$34,000
4WD Reg Cab 140"
$34,700
2WD Crew Cab 147"
$36,400
4WD Double Cab 147"
$37,300
4WD Crew Cab 147"
$39,700
4WD Crew Cab 157"
$40,000
2WD Double Cab 147" SLE
$41,400
2WD Double Cab 147" Elevation
$43,100
2WD Crew Cab 147" SLE
$43,800
4WD Double Cab 147" Elevation w/3VL
$44,600
4WD Double Cab 147" SLE
$44,700
2WD Crew Cab 147" Elevation
$45,700
4WD Double Cab 147" Elevation w/3SB
$46,400
4WD Crew Cab 147" SLE
$47,100
4WD Crew Cab 147" Elevation w/3VL
$47,200
4WD Crew Cab 157" SLE
$47,400
2WD Crew Cab 147" SLT
$47,500
4WD Crew Cab 147" Elevation w/3SB
$49,000
4WD Crew Cab 157" Elevation
$49,300
4WD Crew Cab 147" SLT
$50,800
4WD Crew Cab 157" SLT
$51,100
4WD Crew Cab 147" AT4
$54,700
2WD Crew Cab 147" Denali
$55,800
4WD Crew Cab 157" AT4
$55,900
4WD Crew Cab 147" Denali
$59,300
4WD Crew Cab 157" Denali
$59,600
$55,900
Starting MSRP
Current listing price
2021 GMC Sierra 1500 AT4

Showing the 2021 GMC Sierra 1500 4WD Crew Cab 157" AT4

Shop Now

Key specs

  • 4-door
  • 5 seats
  • 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel)
  • 16 combined MPG
  • 231.72" length, 75.6" height
  • Four Wheel Drive

Color options

Exterior

Satin Steel Metallic

Interior
Jet Black with Kalahari accents

Packages

  • AT4 Preferred Equipment Group

    $0

    Starting MSRP

    • includes standard equipment
  • AT4 Value Package

    $2,605

    Starting MSRP

    • includes (PDO) AT4 Preferred Package
    • (R3O) LT275/65R18C MT blackwall Goodyear Wrangler DuraTrac tires
    • (PQB) Driver Alert Package
  • AT4 Preferred Package

    $1,420

    Starting MSRP

    • includes (UG1) Universal Home Remote
    • (A48) rear sliding power window
    • (IOT) 8" diagonal Premium GMC Infotainment with navigation
    See more detail
    • includes (UG1) Universal Home Remote
    • (A48) rear sliding power window
    • (IOT) 8" diagonal Premium GMC Infotainment with navigation
    • (UQA) Bose Premium Audio System and (K4C) Wireless Charging
  • LPO, Cargo Convenience Package

    $515

    Starting MSRP

    • includes (S1O) LPO
    • console-mounted safe and (VBJ) rear under seat storage
    • LPO
    See more detail
    • includes (S1O) LPO
    • console-mounted safe and (VBJ) rear under seat storage
    • LPO
    • (dealer-installed)
  • Technology Package

    $2,075

    Starting MSRP

    • includes (UVS) HD Surround Vision
    • (DRZ) Rear Camera Mirror
    • (UVN) Bed View Camera and (UV6) Multicolor 15" Diagonal Head-Up DisplayIncludes (UHS) 8" Digital Driver information Center.)
  • AT4 Premium Package

    $3,700

    Starting MSRP

    • includes (PDO) AT4 Preferred Package
    • (R3O) LT275/65R18C MT blackwall Goodyear Wrangler DuraTrac tires
    • (PQB) Driver Alert Package I and (VXW) AT4 high clearance step
  • Driver Alert Package I

    $890

    Starting MSRP

    • includes (UD5) Front and Rear Park Assist
    • (UKC) Lane Change Alert with Side Blind Zone Alert and (UFG) Rear Cross Traffic Alert(Includes Perimeter Lighting.
  • Driver Alert Package II

    $1,095

    Starting MSRP

    • includes (UEU) Forward Collision Alert
    • (UHX) Lane Keep Assist/Lane Departure Warning
    • (UHY) Automatic Emergency Braking
    See more detail
    • includes (UEU) Forward Collision Alert
    • (UHX) Lane Keep Assist/Lane Departure Warning
    • (UHY) Automatic Emergency Braking
    • (UKJ) Front Pedestrian Braking
    • (TQ5) IntelliBeam
    • (KSG) Adaptive Cruise Control and (UE4) Following Distance IndicatorIncludes (HS1) Safety Alert Seat.)

Specifications

Highlights

Engine Type
Diesel I6
MPG
22 City / 26 Hwy
Horsepower
277 hp
420 hp
Seating Capacity
5

Brakes

Brake Type
Pwr
Brake ABS System
4-Wheel
Brake ABS System (Second Line)
N/A
Disc - Front (Yes or )
Yes
Disc - Rear (Yes or )
Yes
Front Brake Rotor Diam x Thickness
13.5 x 1.18 in
Rear Brake Rotor Diam x Thickness
13.6 x 0.79 in
Drum - Rear (Yes or )
N/A

Electrical

Cold Cranking Amps @ 0° F (Primary)
850
Maximum Alternator Capacity (amps)
220

Engine

Engine Type
Diesel I6
Displacement
3.0L/183
SAE Net Horsepower @ RPM
277 @ 3750
SAE Net Torque @ RPM
460 @ 1500
Transmission Options
10-Speed A/T
A/T
MPG
22 City / 26 Hwy
Total Cooling System Capacity
N/A

Entertainment

Bluetooth®
Optional
Bluetooth®
Standard

Measurements

Front Head Room
43 in
Front Leg Room
45 in
Front Shoulder Room
66 in
Front Hip Room
61 in
Second Head Room
40 in
Second Leg Room
43 in
Second Shoulder Room
65 in
Second Hip Room
60 in
Wheelbase
157 in
Length, Overall w/o rear bumper
N/A
Length, Overall w/rear bumper
N/A
Length, Overall
241 in
Width, Max w/o mirrors
81 in
Height, Overall
78 in
Overhang, Front
N/A
Overhang, Rear w/o bumper
N/A
Cab to End of Frame
N/A
Ground to Top of Load Floor
N/A
Ground Clearance, Front
11 in
Ground Clearance, Rear
11 in
Cargo Box Length @ Floor
79 in
Cargo Box Width @ Top, Rear
N/A
Cargo Box Width @ Floor
71 in
Cargo Box Width @ Wheelhousings
51 in
Cargo Box (Area) Height
22 in
Tailgate Width
N/A
Cargo Volume
72 ft³
Ext'd Cab Cargo Volume
N/A
Passenger Capacity
5

Safety

Stability Control
Standard
Backup Camera
Optional

Steering

Steering Type
Electric Rack & Pinion
Steering Ratio (:1), Overall
N/A
Turning Diameter - Curb to Curb
50 ft
Turning Diameter - Wall to Wall
N/A

Suspension

Suspension Type - Front
Independent
Suspension Type - Rear
Solid Axle
Axle Type - Front
N/A
Axle Type - Rear
N/A

Tires & Wheels

Front Tire Size
265/65R18SL
Rear Tire Size
265/65R18SL
Spare Tire Size
265/70R17SL
Front Wheel Size
18 x 8.5 in
Rear Wheel Size
18 x 8.5 in
Spare Wheel Size
17 x -TBD- in
Front Wheel Material
Aluminum
Rear Wheel Material
Aluminum
Spare Wheel Material
Steel

Weight & Capacity

Fuel Tank Capacity, Approx
24 gal
Aux Fuel Tank Capacity, Approx
N/A
Gross Vehicle Weight Rating
7,100 lbs
Total Option Weight
0 lbs
Curb Weight
4,867 lbs
Gross Axle Weight Rating
7,600 lbs
Base Curb Weight
N/A
Curb Weight - Front
2,918 lbs
Curb Weight - Rear
1,949 lbs
Option Weight - Front
0 lbs
Option Weight - Rear
0 lbs
As Spec'd Curb Weight
5,159 lbs
As Spec'd Payload
1,941 lbs
Maximum Payload Capacity
2,233 lbs
Gross Combined Wt Rating
15,000 lbs
Dead Weight Hitch - Max Trailer Wt.
5,000 lbs
Dead Weight Hitch - Max Tongue Wt.
500 lbs
Wt Distributing Hitch - Max Trailer Wt.
8,900 lbs
Wt Distributing Hitch - Max Tongue Wt.
890 lbs
Fifth Wheel Hitch - Max Trailer Wt.
6,400 lbs
Fifth Wheel Hitch - Max Tongue Wt.
1,600 lbs
Maximum Trailering Capacity
9,000 lbs

Compare trims

2021 GMC Sierra 1500 AT4

Wondering which trim is right for you?