2021 GMC Sierra 2500 SLT specs & colors

Extended Cab Pickup

Change trim

$51,600

Starting MSRP
Current listing price

Showing the 2021 GMC Sierra 2500 2WD Double Cab 149" SLT

Shop Now

Key specs

4-door
5 seats
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
0 combined MPG
235.5" length, 79.94" height
Rear Wheel Drive

Color options

Exterior

Oxford Brown Metallic

Interior

Ebony

Gideon / Very Dark Atmosphere

Packages

SLT Preferred Equipment Group

$0

Starting MSRP
- includes standard equipment
Gooseneck / 5th Wheel Package

$1,340

Starting MSRP
- includes (Z6A) Gooseneck / 5th Wheel Prep Package.(Includes (CGN) spray-on bed liner and (UVN) Bed View Camera.
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

$645

Starting MSRP
- includes (UEU) Forward Collision Alert
- (UFL) Lane Departure Warning
- (UHY) Automatic Emergency Braking
See more detail
$645

Starting MSRP
- includes (UEU) Forward Collision Alert
- (UFL) Lane Departure Warning
- (UHY) Automatic Emergency Braking
- (TQ5) IntelliBeam and (UE4) Following Distance IndicatorIncludes (HS1) Safety Alert Seat.)
LPO, Assist step and floor liner package

$895

Starting MSRP
- includes (RIA) All-weather floor liner
- LPO and choice of assist step (VXH) 6" Chrome rectangular tubular assist step
- LPO or (VXJ) 4" Chrome round tubular assist step
See more detail
$895

Starting MSRP
- includes (RIA) All-weather floor liner
- LPO and choice of assist step (VXH) 6" Chrome rectangular tubular assist step
- LPO or (VXJ) 4" Chrome round tubular assist step
- LPO on SLE
SLT Convenience Package

$1,300

Starting MSRP
- includes (A50) bucket seats with (D07) center console
- (KQV) ventilated front seats
- (A48) rear sliding power window
See more detail
$1,300

Starting MSRP
- includes (A50) bucket seats with (D07) center console
- (KQV) ventilated front seats
- (A48) rear sliding power window
- (UG1) Universal Home Remote
- (MCR) USB Ports (Inside Console with bucket seats)
- (MCZ) 2 USB ports with auxiliary input
- (U01) Roof Marker Lamps;
SLT Preferred Package

$1,670

Starting MSRP
- includes (UVN) Bed View Camera
- (UVS) HD Surround Vision with Two Trailer View Camera Provisions (IOT) 8" diagonal Premium GMC Infotainment with navigation
- (UQA) Bose Premium Audio System and (K4C) Wireless Charging
LPO, GMC Protection Package

$370

Starting MSRP
- includes (RIA) all-weather floor liner
- LPO and (VQK) front and rear Black molded splash guards
- LPO
See more detail
$370

Starting MSRP
- includes (RIA) all-weather floor liner
- LPO and (VQK) front and rear Black molded splash guards
- LPO
- (dealer-installed)

Specifications

Highlights

Engine Type: Gas V8
MPG: -
Horsepower: 401 hp
445 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: 14 x 1.6 in
Rear Brake Rotor Diam x Thickness: 14.1 x 1.3 in
Drum - Rear (Yes or ): N/A

Electrical

Cold Cranking Amps @ 0° F (Primary): 720
Maximum Alternator Capacity (amps): 170

Engine

SAE Net Horsepower @ RPM: 401 @ 5200
Displacement: 6.6L/-TBD-
Engine Type: Gas V8
SAE Net Torque @ RPM: 464 @ 4000
Transmission Options: 6-Speed A/T
10-Speed A/T
A/T
MPG: -
Total Cooling System Capacity: N/A

Entertainment

Bluetooth®: Optional
Bluetooth®: Standard

Measurements

Passenger Capacity: 6
Front Head Room: 43 in
Front Leg Room: 45 in
Height, Overall: 80 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: 10 in
Ground Clearance, Rear: 10 in
Cargo Box Length @ Floor: 82 in
Cargo Box Width @ Top, Rear: N/A
Cargo Box Width @ Floor: 71 in
Cargo Box Width @ Wheelhousings: 52 in
Cargo Box (Area) Height: 21 in
Tailgate Width: N/A
Cargo Volume: 70 ft³
Ext'd Cab Cargo Volume: N/A
Length, Overall w/rear bumper: N/A
Front Shoulder Room: 66 in
Length, Overall w/o rear bumper: N/A
Wheelbase: 149 in
Second Hip Room: 60 in
Second Shoulder Room: 65 in
Second Leg Room: 35 in
Second Head Room: 40 in
Front Hip Room: 61 in
Width, Max w/o mirrors: 82 in
Length, Overall: 240 in

Safety

Stability Control: Standard
Backup Camera: Optional

Steering

Steering Type: Pwr Recirculating Ball
Steering Ratio (:1), Overall: N/A
Turning Diameter - Curb to Curb: 50 ft
Turning Diameter - Wall to Wall: N/A

Suspension

Suspension Type - Front: Short/Long Arm
Suspension Type - Rear: Multi-Leaf Springs
Axle Type - Front: N/A
Axle Type - Rear: N/A

Tires & Wheels

Front Tire Size: LT275/70R18E
Rear Tire Size: LT275/70R18E
Spare Tire Size: LT275/70R18
Front Wheel Size: 18 x -TBD- in
Rear Wheel Size: 18 x -TBD- in
Spare Wheel Size: 18 x -TBD- in
Front Wheel Material: Aluminum
Rear Wheel Material: Aluminum
Spare Wheel Material: Steel

Weight & Capacity

Maximum Trailering Capacity: 14,500 lbs
Fifth Wheel Hitch - Max Tongue Wt.: N/A
Fifth Wheel Hitch - Max Trailer Wt.: N/A
Wt Distributing Hitch - Max Tongue Wt.: 1,450 lbs
Wt Distributing Hitch - Max Trailer Wt.: 14,500 lbs
Dead Weight Hitch - Max Tongue Wt.: 500 lbs
Base Curb Weight: N/A
Curb Weight - Front: 3,502 lbs
Curb Weight - Rear: 2,737 lbs
Option Weight - Front: 0 lbs
Option Weight - Rear: 0 lbs
As Spec'd Curb Weight: 6,369 lbs
As Spec'd Payload: 3,881 lbs
Maximum Payload Capacity: 4,011 lbs
Gross Combined Wt Rating: 24,000 lbs
Dead Weight Hitch - Max Trailer Wt.: 5,000 lbs
Gross Vehicle Weight Rating: 10,250 lbs
Fuel Tank Capacity, Approx: 36 gal
Aux Fuel Tank Capacity, Approx: N/A
Gross Axle Weight Rating: 11,000 lbs
Curb Weight: 6,239 lbs
Total Option Weight: 0 lbs

Compare trims

Wondering which trim is right for you?

Our 2021 GMC Sierra 2500 trim comparison will help you decide.