2024 GMC Sierra Heavy Duty 2500 AT4 – 401 HP Heavy-Duty Pickup Truck
Specifications
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Specification |
Details |
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Model |
Sierra Heavy Duty 2500 AT4 |
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Vehicle Category |
Heavy-Duty Pickup Truck |
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Fuel Type |
Gasoline; optional Diesel |
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Application |
Heavy-duty towing, commercial work |
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Starting Price |
$70,100 (4WD), including $1,895 destination charge; as shown: $72,280(2025) |
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Color Options |
Exterior: Onyx Black ($495), Summit White (no cost), Sterling Metallic ($495), Volcanic Red Tintcoat ($645), Titanium Rush Metallic ($495), Redwood Metallic ($495), Meteorite Metallic ($495), Downpour Metallic ($495); Interior: Jet Black with Kalahari accents (leather) |
Frame & Drivetrain
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Specification |
Details |
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Engine |
6.6L V8, gasoline, direct injection (401 HP, 464 lb-ft); optional: 6.6L Duramax Turbo Diesel V8 (470 HP, 975 lb-ft) |
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Gross Horsepower |
401 HP @ 5200 RPM (6.6L V8 Gas) |
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Torque |
464 lb-ft @ 4000 RPM (6.6L V8 Gas) |
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Transmission Type |
Allison 10-speed automatic |
Suspension & Brakes
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Specification |
Details |
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Suspension |
Off-road suspension with Rancho shocks, skid plates, 2 in. factory lift |
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Brakes |
4-wheel disc brakes, 14.0 in. front rotors, 14.1 in. rear rotors, 4-wheel ABS |
Wheels & Tyres
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Specification |
Details |
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Wheels & Tyres |
20 x 8.5 in. gloss-black aluminum wheels, LT275/65R20 all-terrain blackwall tires; optional: BFGoodrich off-road tires |
Components & Features
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Specification |
Details |
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Chassis |
Body-on-frame, GM T1 platform |
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Seating |
5 passengers (bucket seats), perforated leather front seats, 10-way power driver/passenger seats, heated/ventilated front seats, heated rear outboard seats |
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Infotainment |
13.4 in. diagonal center touch-screen, 12.3 in. diagonal Driver Information Center, 15 in. diagonal Head-Up Display with off-road inclinometer, wireless Apple CarPlay/Android Auto, AM/FM stereo, 7-speaker Bose audio, SiriusXM, OnStar, myGMC mobile app; optional: Google Built-In |
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Safety Features |
Sierra HD Pro Safety: Forward Collision Alert, Following Distance Indicator, Front Pedestrian Braking, IntelliBeam, Lane Departure Warning, Buckle to Drive, Automatic Emergency Braking; additional: StabiliTrak, traction control, 4-wheel ABS, dual front/side-impact airbags, head-curtain airbags, Rear Vision Camera, Trailer Side Blind Zone Alert; optional: Rear Park Assist, Adaptive Cruise Control with trailering, up to 14 camera views (including Transparent Trailer View) |
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Convenience Features |
MultiPro Tailgate, trailering package, trailering mirrors, LED headlamps/daytime running lamps, integrated trailer brake controller, spray-in bedliner, recovery hooks, dual-zone climate control, heated steering wheel, power windows/locks, remote keyless entry, push-button start, rain-sensing wipers; optional: power-retractable assist steps, bedliner, up to 14 camera views |
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Cargo Capacity |
Standard box: 83.5 cu.ft., max payload: 3747 lbs, max towing: 17,300 lbs (gas), 18,500 lbs (diesel) |
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Fuel Tank |
36 gal |
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Weight |
6935 lbs (curb weight, 4WD, gas engine) |
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Width |
81.8 in. (2077 mm, without mirrors) |
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Length |
250.1 in. (6353 mm, standard box, Crew Cab) |
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Max Height |
80.9 in. (2055 mm) |
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Ground Clearance |
11.2 in. (284 mm, with factory lift) |