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2021 GMC Sierra 2500 HD Crew Cab Standard Box 4-Wheel Drive AT4



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Vehicle Information

VIN: 1GT49PEY4MF307205
Stock #: MF307205
Model Code: TK20743
  • Body Style TRUCK
  • Exterior Color Onyx Black
  • Interior Color Jet Black With Kalahari Accents
  • Mileage 42,371
  • Engine Turbocharged Diesel V8 6.6L/403
  • Transmission Automatic
  • Fuel Type Diesel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

Discover the ultimate heavy-duty pickup that combines rugged capability with refined comfort - the 2021 GMC Sierra 2500HD AT4. This exceptional truck is a true force to be reckoned with, engineered to tackle any challenge with unwavering confidence. - APPLE CARPLAY!! ANDROID AUTO!!*** - Local Trade - 6.6L V8 Diesel Turbocharged (Duramax) (B20-Diesel Compatible) (445 hp @ 2800 rpm, 910 lb-ft @ 1600 rpm) (Includes (K05) Engine Block Heater) - LPO, SPORT STEP, BLACK (dealer-installed) - WHEELS, 20" (50.8 CM) MACHINED ALUMINUM with high gloss Black accents - Onyx Black Beneath the muscular exterior lies a heart of pure power, courtesy of the Duramax 6.6L V8 Turbodiesel engine. This powerplant delivers an impressive 445 horsepower and an astounding 910 lb-ft of torque, ensuring you can conquer any task with ease. Paired with the smooth-shifting 10-speed automatic transmission and robust 4WD system, the Sierra 2500HD AT4 is primed for adventure, whether you're towing a heavy trailer or navigating rugged terrain. The Sierra 2500HD AT4 is more than just a workhorse; it's a premium-appointed truck that caters to your every need. Indulge in the comfort of heated and ventilated front seats, while your passengers in the rear enjoy the warmth of heated outboard seats. Stay connected with the intuitive Premium GMC Infotainment System, featuring seamless integration with Apple CarPlay and Android Auto. Elevate your off-road prowess with the X31 Off-Road Package, which includes features like Hill Descent Control, Skid Plates, and an Off-Road Suspension. The Snow Plow Prep/Camper Package further enhances the Sierra's versatility, ensuring you're ready for any adventure, whether it's conquering snow-covered roads or embarking on a camping excursion. Safety is paramount, and the Sierra 2500HD AT4 delivers with a comprehensive suite of advanced driver assistance technologies. From the Rear Vision Camera to the Integrated Trailer Brake Controller, this truck is designed to keep you and your cargo secure, no matter the conditions. Experience the unparalleled capability and refined luxury of the 2021 GMC Sierra 2500HD AT4. Visit our showroom today and discover how this exceptional truck can transform the way you work and play.

Eligible Benefits

All Features

  • X31 Off-Road Package includes (JHD) Hill Descent Control, (NZZ) skid plates, Off-Road suspension and Twin-tube Rancho shocks
  • Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
  • ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (U1D) In-vehicle Trailering App
  • Pickup bed includes bed assist step
  • Hill Descent Control
  • Transfer case, two-speed active, electronic Autotrac with push button control
  • Auto-locking rear differential
  • Four wheel drive
  • Air filter, heavy-duty
  • Air filtration monitoring
  • Trailer brake controller, integrated
  • In-vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module (Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed.)
  • Recovery hooks, Red
  • Skid Plates protect the oil pan, front axle and transfer case
  • Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
  • Suspension, Off-Road includes twin-tube shocks
  • Steering, Digital Variable Steering Assist This system automatically adjusts steering based on speed, road conditions, and other inputs to reduce driver effort and fatigue
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • Brake lining wear indicator
  • Wheels, 18" (45.7 cm) machined aluminum wheel with Dark Grey metallic accents
  • Tires, LT275/70R18E all-terrain, blackwall
  • Tire, spare LT275/70R18 all-terrain, blackwall
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
  • Bumper, front, body-color lower
  • Bumper, rear body-color with bumper CornerSteps
  • CornerStep, rear bumper
  • Bed Liner, Spray-on, Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (AT4 logo replaces GMC logo. Not available with any Ship Thrus EXCEPT (VSH), (VTV), (TCH) or (TCE).)
  • Bed Step, Black integrated on forward portion of bed on driver and passenger side
  • Cargo tie downs (12), fixed rated at 500 lbs per corner
  • Wheelhouse liners, rear
  • Moldings, beltline, Black
  • Grille (Painted Black surround with high gloss Black mesh and Black chrome inserts.)
  • Headlamps, LED reflector (high intensity) with LED turn signals and LED signature Daytime Running Lamps
  • Fog lamps, LED
  • Lamps, cargo area cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
  • Taillamps, LED signature taillight with LED stop and reverse light
  • Mirrors, outside power-adjustable vertical trailering with heated and auto-dimming upper glass, (driver and passenger) lower convex mirrors, turn signal indicators, puddle lamps, perimeter lighting, auxiliary lighting, power folding/extending (extends 3.31" [84.25mm]) (Molded in color Black.)
  • Mirror caps, high gloss Black
  • Glass, deep-tinted
  • Door handles, body-color
  • Tailgate, GMC MultiPro Tailgate with six functional load/access features
  • Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
  • Tailgate and bed rail protection caps, top
  • Audio system, Premium GMC Infotainment System with 8" diagonal color touch-screen includes multi-touch display, AM/FM stereo, Bluetooth® streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones, advanced voice recognition, in-vehicle apps, personalized profiles for infotainment and vehicle settings (Includes (PZ8) Hitch Guidance with hitch view.)
  • Radio, HD
  • SiriusXM Radio
  • SiriusXM Radio with 360L Equipped with SiriusXM with 360L. Enjoy a trial subscription of the All Access package for the full 360L experience, with a greater variety of SiriusXM content, a more personalized experience and easier navigation. With the All Access package, you can also enjoy your favorites everywhere you go, with the SiriusXM app, online and at home on compatible connected devices. (IMPORTANT: The SiriusXM radio trial package is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use. If you decide to continue service after your trial, the subscription plan you choose will automatically renew thereafter and you will be charged according to your chosen payment method at then-current rates. Fees and taxes apply. See the SiriusXM Customer Agreement at www.siriusxm.com for complete terms and how to cancel. All fees, content, features, and availability are subject to change. GM connected vehicle services vary by vehicle model and require active service plan, working electrical system, cell reception and GPS signal. See onstar.com for details and limitations.)
  • Audio system feature, 6-speaker system
  • Bluetooth® for phone, connectivity to vehicle infotainment system
  • Wireless Phone Projection for Apple Carplay and Android Auto
  • 4G LTE Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Seats, front bucket with center console
  • Seat trim, Perforated leather-appointed front
  • Seat adjuster, driver 10-way power including lumbar
  • Seat adjuster, passenger 10-way power including lumbar
  • Seating, heated driver and front outboard passenger
  • Seats, ventilated driver and front passenger
  • Driver memory recalls driver "presets" for power driver seat and outside mirrors
  • Seats, heated second row outboard seats
  • Seat, Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
  • Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
  • Floor covering, color-keyed carpeting
  • Premium Floor Liners with removable carpet insert, front
  • Premium Floor Liners with removable carpet insert, rear
  • Steering wheel, leather-wrapped
  • Steering wheel, heated
  • Steering wheel audio controls
  • Steering column, manual Tilt-Wheel and telescoping
  • Steering column, lock control, electrical
  • Driver Information Center, 4.2" diagonal color display includes driver personalization
  • Exterior Temperature Display, located in radio display
  • Compass, located in instrument cluster
  • Rear Seat Reminder
  • Windows, power front, drivers express up/down
  • Window, power front, passenger express up/down
  • Windows, power rear, express down
  • Door locks, power
  • Keyless Open and Start
  • Remote vehicle starter system
  • Cruise control, steering wheel-mounted
  • Theft-deterrent system, unauthorized entry
  • Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
  • USB ports, 2 (first row) located on instrument panel
  • USB Ports (Inside Console with bucket seats), 2 also includes 1 SD card reader and auxiliary jack
  • Power outlet, front auxiliary, 12-volt
  • Power outlet, rear auxiliary, 12-volt
  • USB ports, dual, charge-only (2nd row)
  • Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
  • Air conditioning, dual-zone automatic climate control
  • Air vents, rear
  • Defogger, rear-window electric
  • Mirror, inside rearview auto-dimming
  • Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
  • GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details)
  • StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
  • Daytime Running Lamps, LED signature lighting
  • Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
  • OnStar and GMC connected services capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • HD Rear Vision Camera
  • Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching
  • Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt
  • Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
  • Tire Pressure Monitoring System with Tire Fill Alert (does not apply to spare tire)
  • Trailering Information Label provides max trailer ratings for tongue weight, conventional, gooseneck and 5th wheel trailering

LPO, SPORT STEP, BLACK

  • (dealer-installed)

WHEELS, 20" (50.8 CM) MACHINED ALUMINUM

  • with high gloss Black accents

AT4 PREFERRED EQUIPMENT GROUP

  • includes standard equipment

SEATS, FRONT BUCKET

  • with center console (STD)

PICKUP BED

  • includes bed assist step (STD)

AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH 8" DIAGONAL COLOR TOUCH-SCREEN

  • includes multi-touch display
  • AM/FM stereo
  • Bluetooth® streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones
  • advanced voice recognition
  • in-vehicle apps
  • personalized profiles for infotainment and vehicle settings (STD) (Includes (PZ8) Hitch Guidance with hitch view.)

SNOW PLOW PREP/CAMPER PACKAGE

  • includes (KW5) 220-amp alternator
  • includes increased front GAWR on Heavy Duty models
  • (NZZ) skid plates (transfer case and oil pan)
  • pass through dash grommet hole and roof emergency light provisions. Contact GM Upfitter Integration at www.gmupfitter.com for plow installation details and assistance. Note: if ordered for Camper usage
  • recommend ordering (UY2) Trailering wiring provisions

  • EXHAUST BRAKE

    REAR AXLE

  • 3.42 RATIO

    LAMPS

  • SMOKED AMBER LED ROOF MARKER
  • (LED)

    LICENSE PLATE KIT

  • FRONT

    ALTERNATOR

  • 220 AMPS

    EMISSIONS

  • CONNECTICUT
  • DELAWARE
  • MAINE
  • MARYLAND
  • MASSACHUSETTS
  • NEW JERSEY
  • NEW YORK
  • OREGON
  • PENNSYLVANIA
  • RHODE ISLAND
  • VERMONT AND WASHINGTON STATE REQUIREMENTS

    ENGINE BLOCK HEATER

    GVWR

  • 11
  • 350 LBS. (5148 KG)

    TIRES

  • LT275/65R20 ALL-TERRAIN
  • BLACKWALL

    ONYX BLACK

    WINTER GRILLE COVER

    TRANSMISSION

  • ALLISON 10-SPEED AUTOMATIC

    JET BLACK WITH KALAHARI ACCENTS

  • PERFORATED FRONT LEATHER SEAT TRIM

  • Electrical
    • Cold Cranking Amps @ 0° F (Primary): 720
    • Maximum Alternator Capacity (amps): 220
    • Maximum Alternator Capacity (amps): 170
    • Maximum Alternator Watts: N/A
  • Cooling System
    • Total Cooling System Capacity (qts): - TBD -
  • Weight Information
    • Gross Axle Wt Rating - Front (lbs): 6000
    • Gross Axle Wt Rating - Front (lbs): 5600
    • Gross Axle Wt Rating - Front (lbs): 4800
    • Gross Axle Wt Rating - Rear (lbs): 6600
    • Curb Weight - Front (lbs): 3854
    • Curb Weight - Rear (lbs): 2788
    • Gross Vehicle Weight Rating Cap (lbs): 11350
    • Gross Vehicle Weight Rating Cap (lbs): 10650
    • Gross Combined Wt Rating (lbs): 27500
    • Gross Combined Wt Rating (lbs): 26000
    • Gross Combined Wt Rating (lbs): 24000
  • Trailering
    • Dead Weight Hitch - Max Trailer Wt. (lbs): 5000
    • Dead Weight Hitch - Max Tongue Wt. (lbs): 500
    • Wt Distributing Hitch - Max Trailer Wt. (lbs): 18500
    • Wt Distributing Hitch - Max Trailer Wt. (lbs): 14500
    • Wt Distributing Hitch - Max Tongue Wt. (lbs): 1850
    • Wt Distributing Hitch - Max Tongue Wt. (lbs): 1450
    • Fifth Wheel Hitch - Max Trailer Wt. (lbs): 18500
    • Fifth Wheel Hitch - Max Trailer Wt. (lbs): - TBD -
    • Fifth Wheel Hitch - Max Tongue Wt. (lbs): 4625
    • Fifth Wheel Hitch - Max Tongue Wt. (lbs): - TBD -
    • Maximum Trailering Capacity (lbs): 18500
  • Suspension
    • Suspension Type - Front (Cont.): w/Torsion Bar
    • Suspension Type - Rear (Cont.): 3-Stage Leaf
    • Suspension Type - Front: Short/Long Arm
    • Suspension Type - Rear: Multi-Leaf Springs
    • Spring Capacity - Front (lbs): - TBD -
    • Spring Capacity - Rear (lbs): - TBD -
    • Axle Type - Front: - TBD -
    • Axle Type - Rear: - TBD -
    • Axle Capacity - Front (lbs): - TBD -
    • Axle Capacity - Rear (lbs): - TBD -
    • Axle Ratio (:1) - Front: 3.42
    • Axle Ratio (:1) - Front: 3.73
    • Axle Ratio (:1) - Rear: 3.42
    • Axle Ratio (:1) - Rear: 3.73
    • Shock Absorber Diameter - Front (mm): 51
    • Shock Absorber Diameter - Rear (mm): 51
    • Stabilizer Bar Diameter - Front (in): 1.38
  • Brakes
    • Brake Type: Pwr
    • Brake ABS System: 4-Wheel
    • Disc - Front (Yes or ): Yes
    • Disc - Rear (Yes or ): Yes
    • Front Brake Rotor Diam x Thickness (in): 14 x 1.6
    • Rear Brake Rotor Diam x Thickness (in): 14.1 x 1.3
  • Tires
    • Front Tire Order Code: QF9
    • Front Tire Order Code: QF6
    • Rear Tire Order Code: QF9
    • Rear Tire Order Code: QF6
    • Spare Tire Order Code: ZYG
    • Front Tire Size: LT275/65R20
    • Front Tire Size: LT275/70R18E
    • Rear Tire Size: LT275/65R20
    • Rear Tire Size: LT275/70R18E
    • Spare Tire Size: LT275/70R18
    • Front Tire Capacity (lbs): - TBD -
    • Rear Tire Capacity (lbs): - TBD -
    • Spare Tire Capacity (lbs): - TBD -
    • Revolutions/Mile @ 45 mph - Front: N/A
    • Revolutions/Mile @ 45 mph - Rear: N/A
    • Revolutions/Mile @ 45 mph - Spare: N/A
  • Wheels
    • Front Wheel Size (in): 20 x - TBD -
    • Front Wheel Size (in): 18 x - TBD -
    • Rear Wheel Size (in): 20 x - TBD -
    • Rear Wheel Size (in): 18 x - TBD -
    • Spare Wheel Size (in): 18 x - TBD -
    • Front Wheel Material: Aluminum
    • Rear Wheel Material: Aluminum
    • Spare Wheel Material: Steel
  • Steering
    • Steering Type: Pwr Recirculating Ball
    • Steering Ratio (:1), On Center: - TBD -
    • Steering Ratio (:1), At Lock: - TBD -
    • Turning Diameter - Curb to Curb (ft): 52.7
    • Turning Diameter - Wall to Wall (ft): N/A
  • Frame
    • Frame Type: - TBD -
  • Fuel Tank
    • Fuel Tank Capacity, Approx (gal): 36
    • Fuel Tank Location: - TBD -
  • Exterior Dimensions
    • Wheelbase (in): 158.94
    • Length, Overall (in): 250.08
    • Width, Max w/o mirrors (in): 81.85
    • Height, Overall (in): 79.82
    • Overhang, Front (in): - TBD -
    • Overhang, Rear w/o bumper (in): - TBD -
    • Front Bumper to Back of Cab (in): - TBD -
    • Cab to Axle (in): 42.1
    • Cab to End of Frame (in): - TBD -
    • Ground to Top of Load Floor (in): - TBD -
    • Ground to Top of Frame (in): - TBD -
    • Frame Width, Rear (in): - TBD -
    • Ground Clearance, Front (in): 10.12
    • Ground Clearance, Rear (in): 10.12
  • Cargo Area Dimensions
    • Cargo Box Length @ Floor (in): 82.2
    • Cargo Box Width @ Top, Rear (in): - TBD -
    • Cargo Box Width @ Floor (in): 71.4
    • Cargo Box Width @ Wheelhousings (in): 51.85
    • Cargo Box (Area) Height (in): 21
    • Tailgate Width (in): - TBD -
    • Cargo Volume (ft³): 69.5
    • Ext'd Cab Cargo Volume (ft³): - TBD -
  • Interior Dimensions
    • Passenger Capacity: 5
    • Front Head Room (in): 43.03
    • Front Leg Room (in): 44.53
    • Front Shoulder Room (in): 66.02
    • Front Hip Room (in): 61.18
    • Second Head Room (in): 40.12
    • Second Leg Room (in): 43.4
    • Second Shoulder Room (in): 65.3
    • Second Hip Room (in): 60.24
  • Summary
    • Vehicle Name: GMC Sierra 2500HD
    • Body Style: Crew Cab Pickup
    • Body Code: E63
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