2023 Sierra AT4X; Denali Ultimate: Pickup Truck - GMC (2024)

2023 GMC SIERRA 1500 SPECIFICATIONS

EPA-EST. MPG

CITYHIGHWAY
2.7L Turbo

19 (2WD)
18 (4WD)
17 (4WD – AT4)

22 (2WD)
20 (4WD)
18 (4WD – AT4)

3.0L I-6 Turbo Diesel

24 (2WD)
22 (4WD)
21 (4WD – AT4)

29 (2WD)
27 (4WD)
23 (4WD – AT4)

5.3L V-8

16 (2WD)
12 (2WD with E85)
16 (4WD)
11 (2WD with E85)
15 (4WD – AT4)
11 (4WD – AT4 with E85)

21 (2WD)
15 (2WD with E85)
20 (4WD)
14 (2WD with E85)
19 (4WD – AT4)
14 (4WD – AT4 with E85)

6.2L V-8

15 (4WD)
14 (4WD – AT4 & AT4X)

19 (4WD)
17 (4WD – AT4 & AT4X)

FUEL TANK CAPACITY (APPROX.)1

REGULAR CABDOUBLE CABCREW CAB

28.3 gal. / 107 liters

24 gal. / 91 liters

24 gal. / 91 liters

1Capacity is 22 gal. / 83 liters (approx..) for 2WD diesel models.

ENGINES

Type:

2.7L Turbo DOHC VVT DI with Active Fuel Management

Bore & Stroke (in. / mm):

3.63 x 4.01 / 92.25 x 102

Block Material:

Cast aluminum

Cylinder Head Material:

Cast aluminum

Valvetrain:

Dual-overhead camshafts, four-valves per cylinder, tripower valvetrain with continuously variable valve timing, variable valve lift and Active Fuel Management

Fuel Delivery:

Direct high-pressure fuel injection with Active Fuel Management

Horsepower
(hp / kW @ rpm):

310 / 231 @ 5600 (SAE certified)

Torque
(lb.-ft. / Nm @ rpm):

348 / 473 @ 1500-4000 (SAE certified)

Type:

3.0L DOHC I-6 Turbo-Diesel

Bore & Stroke (in. / mm):

3.30 x 3.54 / 84 x 90

Block material:

Cast aluminum

Cylinder Head Material:

Cast aluminum

Valvetrain:

Dual-overhead camshafts, four-valves per cylinder

Fuel Delivery:

High-pressure, common-rail direct injection; electronic throttle valve

Horsepower
(hp / kW @ rpm):

305 / 227 @ 3750 (GM est.)

Torque
(lb.-ft. / Nm @ rpm):

495 / 365 @ 1500 (GM est.)

Type:

5.3L V-8 VVT DI with Dynamic Fuel Management

Bore & Stroke (in. / mm):

3.78 x 3.62 / 96 x 92

Block Material:

Cast aluminum

Cylinder Head Material:

Cast aluminum

Valvetrain:

Overhead valve, two valves per cylinder, variable valve timing

Fuel Delivery:

Direct high-pressure fuel injection with Dynamic Fuel Management

Horsepower
(hp / kW @ rpm):

355 / 265 @ 5600 (SAE certified)

Torque
(lb.-ft. / Nm @ rpm):

383 / 519 @ 4100 (SAE certified)

Type:

6.2L V-8 VVT DI with Dynamic Fuel Management

Bore & Stroke (in. / mm):

4.06 x 3.62 / 103.25 x 92

Block material:

Cast aluminum

Cylinder Head Material:

Cast aluminum

Valvetrain:

Overhead valve, two valves per cylinder, variable valve timing

Fuel Delivery:

Direct high-pressure fuel injection with Dynamic Fuel Management

Horsepower
(hp / kW @ rpm):

420 / 313 @ 5600 (SAE certified)

Torque
(lb.-ft. / Nm @ rpm):

460 / 623 @ 4100 (SAE certified)

TRANSMISSION & AXLE

Type:

8-speed automatic (2.7L)
10-speed automatic (3.0L, 5.3L and 6.2L)

Gear Ratios (:1):

8L90 8-speed

10L80 10-speed

First

4.56

4.70

Second

2.97

2.99

Third

2.08

2.15

Fourth

1.69

1.77

Fifth

1.27

1.52

Sixth

1.00

1.28

Seventh

0.85

1.00

Eighth

0.65

0.85

Ninth

--

0.69

Tenth

--

0.64

Reverse

3.82

4.87

Axle Ratio:

3.23 (5.3L, 3.0L)
3.42 (2.7L, 5.3L with Max Trailering Pkg. and 6.2L)
3.73 (3.0L with Max Trailering Pkg.)

CHASSIS & SUSPENSION

Front Suspension:

Independent coil-over-shock with twin-tube shock absorbers; Rancho shocks with X31 pkg. Two-speed transfer case or Autrotrac automatic transfer case with 4WD, depending on the model

Rear Suspension:

Solid axle with semi-elliptic, variable-rate, two-stage multileaf springs, splayed twin-tube shock absorbers; Rancho shocks with X31 pkg. Two-speed transfer case or Autrotrac automatic transfer case with 4WD, depending on the model

Steering Type:

Electric power-assisted rack-and-pinion

Brake Type:

Four-wheel disc with electro-hydraulic power assist and ABS; vented front and rear DuralifeTM rotors

Brake Rotor Size
(in. / mm):

13 x 1.18 / 330 x 30 (front)
13.6 x 0.79 / 345 x 20 (rear)

Wheel Size:

17-in. x 8-in. steel (std.)
17-in. x 8-in. aluminum (avail.)
18-in. x 8.5-in. aluminum (avail.)
18-in. x 8.5-in. aluminum in black (AT4X)
20-in. x 9-in. aluminum (avail.)
20-in. x 9-in. aluminum polished (std. Denali)
22-in. x 9-in. aluminum polished (avail. Denali)
22-in. x 9-in. aluminum ultra-bright machined (Denali Ultimate)

Tire Size:

P255/70R17 all-season
P265/70R17 all-season
LT265/70R17 all-terrain
P265/65R18 all-season or all terrain
LT275/65R18 Goodyear Wrangler DuraTrac
LT265/60R20 Goodyear Wrangler Territory
P275/60R20 all-season or all terrain
P275/50R22 all-season

EXTERIOR DIMENSIONS

REGULAR CABDOUBLE CABCREW CAB
Wheelbase
(in. / mm):

126.5 / 3213 (6’ 6” box)
139.5 / 3545 (8’ box)

147.4 / 3745 (6’ 6” box)
147.5 / 3747 (6’ 6” box w/AT4)

147.4 / 3745 (5’ 8” box)
147.5 / 3747
(5’ 8” box w/AT4)
157 / 3987 (6’ 6” box)
157.1 / 3989
(6’ 6” box – AT4)

Overall Length
(in. / mm):

210.9 / 5359 (6’ 6” box)
229.7 / 5835 (8’ box)

231.9 / 5891 (6’ 6” box)

231.9 / 5891 (5’ 8” box)
241.4 / 6133 (6’ 6” box)
242.5 / 6158 (6’ 6” box – lifted)

Overall Width
(in. / mm):

81.1 / 2061

81.2 / 2063

81.2 / 2063

Overall Height
(in. / mm):

75.7 / 1923
(2WD – 6’ 6” box)
75.8 / 1927
(4WD – 6’ 6” box)
75.6 / 1920
(2WD – 8’ box)
75.6 / 1920
(4WD – 8’ box)

75.6 / 1920 (2WD)
75.6 / 1921 (4WD)

75.5 / 1917
(2WD – 5’ 8” box)
75.5 / 1918
(4WD – 5’ 8” box)
78.3 / 1990
(5’ 8” box – AT4/AT4X)
75.4 / 1915
(4WD – 6’ 6” box)
78.2 / 1987
(6’ 6” box – AT4)

Ground Clearance
(in. / mm):

7.8 / 200
(2WD – 6’ 6” box)
8.2 / 210
(4WD – 6’ 6” box)
7.9 / 201
(2WD – 8’ box)
8.1 / 206
(4WD – 8’ box)

7.8 / 200 (2WD)
8.0 / 205 (4WD)

7.9 / 200
(2WD – 5’ 8” box)
8.0 / 205
(4WD – 5’ 8” box)
11.1 / 282
(5’ 8” box – AT4/AT4X)
7.9 / 202
(4WD – 6’ 6” box)
10.9 / 279
(6’ 6” box – AT4)

INTERIOR DIMENSIONS

REGULAR CABDOUBLE CABCREW CAB
Headroom
(in. / mm):

43.1 / 1095

43.0 / 1093 (front)
39.9 / 1013 (rear)

43.0 / 1093 (front)
40.1 / 1019 (rear)

Legroom
(in. / mm):

44.5 / 1131

44.5 / 1131 (front)
35.2 / 895 (rear)

44.5 / 1131 (front)
43.4 / 1102 (rear)

Shoulder Room
(in. / mm):

66.0 / 1677

66.0 / 1677 (front)
64.9 / 1648 (rear)

66.0 / 1677 (front)
65.1 / 1654 (rear)

Hip Room
(in. / mm):

60.9 / 1547

61.2 / 1554 (front)
60.2 / 1530 (rear)

61.2 / 1554 (front)
60.2 / 1530 (rear)

BASE CURB WEIGHT

REGULAR CABDOUBLE CABCREW CAB
2.7L (lb. / kg):

4420 / 2014 (2WD – 6’ 6” box)
4660 / 2114
(4WD – 6’ 6” box)
4530 / 2055 (2WD – 8’ box)
4770 / 2164
(4WD – 8’ box)

4750 / 2155 (2WD)
4960 / 2250 (4WD)

4760 / 2159
(2WD – 5’ 8” box)
4990 / 2263 (4WD – 5’ 8” box)
5030 / 2282 (4WD – 6’ 6” box)

5.3L (lb. / kg):

4620 / 2096 (2WD – 6’ 6” box)
4840 / 2195
(4WD – 6’ 6” box)
4650 / 2109 (2WD – 8’ box)
4900 / 2223
(4WD – 8’ box)

4840 / 2195 (2WD)
5020 / 2277 (2WD & NHT)
5080 / 2304 (4WD)
5230 / 2352
(4WD & NHT)

4890 / 2218
(2WD – 5’ 8” box)
5110 / 2318
(2WD – 5’ 8” box & NHT)
5110 / 2318 (4WD – 5’ 8” box)
5330 / 2418 (4WD – 5’ 8” box & NHT)
5160 / 2341 (4WD – 6’ 6” box)
5380 / 2440 (4WD – 6’ 6” box & NHT)

6.2L (lb. / kg):

N/A

N/A

5410 / 2454 (4WD – 5’ 8” box)
5450 / 2472 (4WD – 5’ 8” box & NHT)
5410 / 2454 (AT4 – 5’ 8” box)
5780 / 2622 (AT4X – 5’ 8” box)
5460 / 2477 (4WD – 6’ 6” box)
5500 / 2495 (4WD – 6’ 6” box & NHT)
5460 / 2477 (AT4 – 6’ 6” box)

3.0L Turbo Diesel (lb. / kg):

N/A

5110 / 2318 (2WD)
5170 / 2345 (2WD & NHT)
5320 / 2413 (4WD)
5350 / 2427
(4WD & NHT)

5130 / 2327 (2WD – 5’ 8” box)
5260 / 2386 (2WD – 5’ 8” box & NHT)
5380 / 2440 (4WD – 5’ 8” box)
5470 / 2481 (4WD – 5’ 8” box & NHT)
5500 / 2495 (AT4 – 5’ 8” box)
5420 / 2459 (4WD – 6’ 6” box)
5520 / 2504 (4WD – 6’ 6” box & NHT)
5540 / 2513 (AT4 – 6’ 6” box)

BASE GVWR

REGULAR CABDOUBLE CABCREW CAB

Max GVWR (lb. / kg):

6700 / 3039 (2WD – 6’ 6” box)
6800 / 3084 (4WD – 6’ 6” box)
6800 / 3084 (2WD – 8’ box)
6900 / 3130 (4WD – 8’ box)

6800 / 3084 (2WD)
7100 / 3220 (2WD & NHT)
7000 / 3175 (4WD)
7300 / 3311 (4WD & NHT)

6800 / 3084 (2WD – 5’ 8” box)
7100 / 3221 (2WD – 5’ 8” box & NHT)
7000 / 3175 (4WD – 5’ 8” box)
7300 / 3311 (4WD – 5’ 8” box & NHT)
7000 / 3175 (AT4 – 5’ 8” box)
7100 / 3221 (AT4X – 5’ 8” box)
7000 / 3175 (4WD – 6’ 6” box)
7300 / 3311 (4WD – 6’ 6” box & NHT)
7000 / 3175 (AT4 – 6’ 6” box)

1When properly equipped; includes weight of vehicle, passengers, cargo and equipment.

BASE PAYLOAD

REGULAR CABDOUBLE CABCREW CAB
2.7L (lb. / kg):

2230 / 1011 (2WD – 6’ 6” box)
2110 / 957
(4WD – 6’ 6” box)
2240 / 1016 (2WD – 8’ box)
2090 / 948
(4WD – 8’ box)

2020 / 916 (2WD)
2010 / 912 (4WD)

2000 / 907
(2WD – 5’ 8” box)
1980 / 898 (4WD – 5’ 8” box)
1930 / 875 (4WD – 6’ 6” box)

5.3L (lb. / kg):

2150 / 975 (2WD – 6’ 6” box)
2030 / 931
(4WD – 6’ 6” box)
2120 / 962 (2WD – 8’ box)
1970 / 894
(4WD – 8’ box)

1890 / 857 (2WD)
2150 / 975 (2WD & NHT)
1890 / 857 (4WD)
2040 / 945
(4WD & NHT)

1980 / 898
(2WD – 5’ 8” box)
1960 / 889
(2WD – 5’ 8” box & NHT)
1960 / 889 (4WD – 5’ 8” box)
1940 / 880 (4WD – 5’ 8” box & NHT)
1910 / 866 (4WD – 6’ 6” box)
1890 / 857 (4WD – 6’ 6” box & NHT)

6.2L (lb. / kg):

N/A

N/A

1660 / 753 (4WD – 5’ 8” box)
1820 / 826 (4WD – 5’ 8” box & NHT)
1660 / 753 (AT4 – 5’ 8” box)
1290 / 585 (AT4X – 5’ 8” box)
1610 / 730 (4WD – 6’ 6” box)
1770 / 803 (4WD – 6’ 6” box & NHT)
1610 / 730 (AT4 – 6’ 6” box)

3.0L Turbo Diesel (lb. / kg):

N/A

1760 / 798 (2WD)
1890 / 857 (2WD & NHT)
1720 / 780 (4WD)
1880 / 853
(4WD & NHT)

1840 / 735 (2WD – 5’ 8” box)
1810 / 821 (2WD – 5’ 8” box & NHT)
1790 / 812 (4WD – 5’ 8” box)
1790 / 812 (4WD – 5’ 8” box & NHT)
1670 / 758 (AT4 – 5’ 8” box)
1740 / 789 (4WD – 6’ 6” box)
1470 / 789 (4WD – 6’ 6” box & NHT)
1620 / 735 (AT4 – 6’ 6” box)

1For comparison purposes only. See the owner's manual and the label on the vehicle door jamb for the carrying capacity of a specific vehicle.

TRAILERING1

REGULAR CABDOUBLE CABCREW CAB
2.7L (lb. / kg):

9000 / 4082 (2WD – 6’ 6” box)
8800 / 3992
(4WD – 6’ 6” box)
9500 / 4309 (2WD – 8’ box)
9200 / 4173
(4WD – 8’ box)

9200 / 4173 (2WD)
9000 / 4082 (4WD)

9100 / 4127 (2WD – 5’ 8” box)
8900 / 4037 (4WD – 5’ 8” box)
8900 / 4037 (4WD – 6’ 6” box)

5.3L (lb. / kg):

8900 / 4037 (2WD – 6’ 6” box)
8600 / 3901
(4WD – 6’ 6” box)
9900 / 4490 (2WD – 8’ box)
9700 / 4400
(4WD – 8’ box)

9700 / 4400 (2WD)
11200 / 5080 (2WD & NHT)
9300 / 4218 (4WD)
11000 / 4989 (4WD & NHT)

9400 / 4263 (2WD – 5’ 8” box)
11100 / 5035 (2WD – 5’ 8” box & NHT)
9400 / 4263 (4WD – 5’ 8” box)
10900 / 4944 (4WD – 5’ 8” box & NHT)
9400 / 4263 (4WD – 6’ 6” box)
10800 / 4899 (4WD – 6’ 6” box & NHT)

6.2L (lb. / kg):

N/A

N/A

9000 / 4082 (4WD – 5’ 8” box)
13000 / 5897 (4WD – 5’ 8” box & NHT)
9000 / 4082 (AT4 – 5’ 8” box)
8900 / 4037 (AT4X – 5’ 8” box)
9000 / 4082 (4WD – 6’ 6” box)
13000 / 5897 (4WD – 6’ 6” box & NHT)
9000 / 4082 (AT4 – 6’ 6” box)

3.0L Turbo Diesel (lb. / kg):

N/A

9300 / 4218 (2WD)
13200 / 5988 (2WD & NHT)
9100 / 4127 (4WD)
13000 / 5897 (4WD & NHT)

9200 / 4173 (2WD – 5’ 8” box)
13100 / 5942 (2WD – 5’ 8” box & NHT)
8900 / 4037 (4WD – 5’ 8” box)
13000 / 5897 (4WD – 5’ 8” box & NHT)
9000 / 4082 (AT4 – 5’ 8” box)
8800 / 3992 (4WD – 6’ 6” box)
12900 / 5851 (4WD – 6’ 6” box)
9000 / 4082 (AT4 – 6’ 6” box)

1Before you buy a vehicle or use it for trailering, carefully review the Trailering section of the Owner’s Manual. The weight of passengers, cargo and options or accessories may reduce the amount you can tow.

2023 Sierra AT4X; Denali Ultimate: Pickup Truck - GMC (2024)
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