Used 2025 GMC Sierra 2500 HD AT4 Truck Crew Cab

  • Used
  • Diesel
$68,157Retail Price
$68,336Price
Richardson Motors Iowa, Inc
Call 563-582-5411
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    The overview

    Exterior Color
    Onyx Black
    Interior Color
    Jet Black
    Odometer
    25,728 miles
    Body/Seating
    Truck Crew Cab/5 seats
    Seats
    5 seats
    Transmission
    Automatic
    Drivetrain
    4x4
    Engine
    V-8 cyl
    VIN
    1GT4UPEY7SF118186
    Stock Number
    26T604A
    • CARFAX 1-Owner Good Value Badge
    • AutoCheck

    The highlights

    • Lane departure
    • Leather upholstery
    • Automatic temperature control
    • Emergency communication system
    • Power moonroof
    • Wireless phone connectivity
    • Parking sensors
    • Exterior parking camera front
    • Exterior parking camera left
    • Exterior parking camera right
    • Exterior parking camera rear
    • Front dual zone A/C

    A closer look at what’s included

    Engine: Duramax 6.6L Turbo-Diesel V8

    • Capped Fuel Fill
    • 220-Amp Alternator
    • Dual Heavy-Duty 70 Amp Battery
      Includes 730 cold-cranking amps, maintenance-free with rundown protection and retained accessory power.
    • Winter Grille Cover

    AT4 Premium Plus Package

    • AT4 Preferred Package
    • Power Sunroof
    • Technology Package
    • Off-Road High Clearance Step
      Dealer installed.

    Technology Package

    • Inside Rearview Auo-Dimming Rear Camera Mirror
      Includes full camera display.
    • Multicolor 15" Diagonal Head-Up Display

    Snow Plow Prep/Camper Package

    • 220-Amp Alternator
    • Skid Plates
      Protect the oil pan, front axle and transfer case.

    AT4 Preferred Package

    • Universal Home Remote
    • Power Sliding Rear Window with Defogger
    • LED Smoked Amber Roof Marker Lamps

    Sierra HD Pro Safety

    • Forward Collision Alert
    • Following Distance Indicator
    • Front Pedestrian Braking
    • IntelliBeam Automatic High Beam on/Off

    Front Bucket Seats

    • 10-Way Power Driver Seat Adjuster with Lumbar
    • 10-Way Power Passenger Seat Adjuster with Lumbar
    • Driver Memory
      Recalls driver presets for power driver seat and outside mirrors.

    Tires: LT275/65R20 AT BW

    • LT275/70R18 AT BW Spare Tire

    X31 Off-Road Package

    • Hill Descent Control
    • Skid Plates
      Protect the oil pan, front axle and transfer case.
    • Off-Road Suspension
      Includes twin-tube shocks.

    Preferred Equipment Group 4SB

    • Sierra HD Pro Safety
    • Safety Alert Seat
    • Rear Cross Traffic Alert
    • Trailer Side Blind Zone Alert

    Engine: 6.6L V8 with Direct Injection and Variable Valve Timing

    • Heavy-Duty 80 Amp Battery
      Includes 720 cold-cranking amps, maintenance-free with rundown protection and retained accessory power.
    • GVWR: 10,850 lbs

    ProGrade Trailering System

    • Hitch Guidance with Hitch View
      Includes image adjustment and pan/zoom/tilt.
    • in-Vehicle Trailering System App
      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 when (PTT) trailer tire pressure monitoring sensors are installed.

    More pre-installed items

    • GMC MultiPro Tailgate Step Lights
      Dealer installed.
    • Upfitter Switch Kit
      Provides 3-30 amp and 2-20 amp configurable circuits to facilitate installation of aftermarket electrical accessories. Kit with all required parts will be shipped loose with the truck for installation by the dealer or upfitter at customer expense. Installation instructions and technical assistance available at www.gmupfitter.com.
    • Wheels: 20" High Gloss Black 8 Spokes Aluminum
      (50.8 cm).
    • High Idle Switch
    • 1-touch down
    • 1-touch up
    • Adaptive Cruise Control
    • Air conditioning
    • Auto-dimming rearview mirror
    • Automatic temperature control
    • Driver door bin
    • Driver vanity mirror
    • Emergency communication system: OnStar
    • Front beverage holders
    • Front dual zone A/C
    • Garage door transmitter
    • Heated steering wheel
    • Illuminated entry
    • Memory seat
    • Moonroof sunshade: manual
    • Overhead console
    • Passenger door bin
    • Passenger vanity mirror
    • Power moonroof
    • Power windows
    • Proximity key: doors and push button start
    • Rear beverage holders
    • Rear door bins
    • Remote engine start
    • Remote keyless entry
    • Speed control
    • Surround View Monitor: HD Surround Vision w/Hitch View yes
    • Telescoping steering wheel
    • Tilt steering wheel
    • Alloy wheels
    • Front anti-roll bar
    • Front wheel independent suspension
    • Power steering
    • Single rear wheels
    • Speed-sensing steering
    • Tires: all-terrain
    • 1st row LCD monitors: 2
    • Primary LCD size: 13.4"
    • Smart device integration: Apple CarPlay/Android Auto
    • Speaker type: Bose
    • Speakers: 7
    • Steering wheel mounted audio controls
    • Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
    • Wireless Phone Charger: front
    • Wireless phone connectivity: Bluetooth
    • Front center armrest
    • Front seats: bucket
    • Heated front seats
    • Heated rear seats
    • Leather upholstery
    • Max seating capacity: 5
    • Power 2-way driver lumbar support
    • Power 2-way passenger lumbar support
    • Power driver seat
    • Power passenger seat
    • Rear seat center armrest
    • Rear seats: split-bench
    • Rear seats Folding position: fold-up cushion
    • Seat Upholstery: leather
    • Split folding rear seat
    • Ventilated front seats
    • Block heater
    • Compressor: intercooled turbo
    • Cylinder configuration: V-8
    • Drive type: four-wheel
    • Engine liters: 6.6L
    • Engine location: front
    • Fuel tank capacity: 36.0gal.
    • Horsepower: 470hp @ 2,800RPM
    • Hybrid traction battery type: none
    • Manual-shift auto
    • Mode select transmission
    • Number of valves: 32
    • Rear locking differential
    • Recommended fuel: Diesel
    • Standard fuel economy fuel type: diesel
    • Torque: 975 lb.-ft. @ 1,600RPM
    • Transmission: 10 speed automatic
    • Variable valve control
    • Ground clearance (min): 257mm (10.1")
    • Auto-dimming door mirrors
    • Bedliner
    • Bumpers: body-color
    • Heated door mirrors
    • Hitch Class: IV
    • Left rear passenger door: conventional
    • Power door mirrors
    • Rear cargo: tailgate
    • Rear step bumper
    • Right rear passenger: conventional
    • Skid plates
    • Trailer hitch
    • Trailer sway control
    • Turn signal indicator mirrors
    • Compression ratio: 16.00 to 1
    • Curb weight: 3,733kg (8,229lbs)
    • Engine bore x stroke: 103.0mm x 99.0mm (4.06" x 3.90")
    • Engine displacement: 6.6 L
    • Engine torque: 975 lb.-ft. @ 1,600RPM
    • Exterior body width: 2,079mm (81.8")
    • Exterior height: 2,027mm (79.8")
    • Exterior length: 6,369mm (250.8")
    • Front headroom: 1,093mm (43.0")
    • Front hiproom: 1,554mm (61.2")
    • Front legroom: 1,131mm (44.5")
    • Front shoulder room: 1,677mm (66.0")
    • GVWR: 5,148kg (11,350lbs)
    • Payload: 1,398kg (3,083lbs)
    • Rear headroom: 1,019mm (40.1")
    • Rear hiproom: 1,530mm (60.2")
    • Rear legroom: 1,102mm (43.4")
    • Rear shoulder room: 1,659mm (65.3")
    • Towing capacity: 8,391kg (18,500lbs)
    • Turning radius: 8.0m (26.3')
    • Wheelbase: 4,039mm (159.0")
    • Appearance: digital/analog
    • Auto high-beam headlights
    • Blind spot: Trailer Side Blind Zone Alert warning
    • Compass
    • Configurable
    • Delay-off headlights
    • Exterior parking camera cargo
    • Exterior parking camera front
    • Exterior parking camera left
    • Exterior parking camera rear: HD Rear Vision Camera w/Hitch View yes
    • Exterior parking camera right
    • Front fog lights
    • Front reading lights
    • Fully automatic headlights
    • Heads up display
    • Lane departure: Lane Departure Warning warning
    • Low tire pressure warning
    • Oil pressure gauge
    • Outside temperature display
    • Parking sensors: UltraSonic front and rear
    • Rain sensing wipers
    • Rear reading lights
    • Rear window defroster
    • Tachometer
    • Trip computer
    • Variably intermittent wipers
    • Voltmeter
    • 4 wheel disc brakes
    • ABS brakes
    • Brake assist
    • Dual front impact airbags
    • Dual front side impact airbags
    • Electronic stability
    • Forward collision: Forward Collision Alert with Automatic Braking mitigation
    • Front pedestrian detection: prevention
    • Ignition disable
    • Occupant sensing airbag
    • Overhead airbag
    • Panic alarm
    • Perimeter/approach lights
    • Rear collision: Rear Cross-Traffic Alert warning
    • Security system
    • Traction control
    This 2025 GMC Sierra 2500HD AT4 delivers serious capability with proven diesel power. Black exterior with jet black leather interior featuring Kalahari accents creates a commanding presence.

    - Duramax 6.6L turbodiesel engine with 10-speed automatic
    - Gooseneck/5th wheel prep package for heavy hauling
    - Dual 220-amp alternators and snow plow prep package
    - Heated leather seats and premium infotainment with wireless CarPlay

    A well-equipped crew cab ready for work or weekend adventures.

    Peace of mind

    vehicle history report

    Vehicle history report

    • Title information
    • Odometer readings
    • Accident data (if applicable)
    • Service history
    • Vehicle usage
    • Recall information (if applicable)
    • Warranty status
    Free CarFax report

    A name you can trust

    Richardson Honda is dedicated to your satisfaction before, during, and after your purchase. We'll go the extra mile to take care of you.
    More about us

    KBB.com Consumer Reviews

    Kelley Blue Book Logo3.6out of 5 overall
    • 4.0

      Great truck , bad mileage

      by Dream truck owner on 11/8/2026 8:42:28 PM

      This truck has everything you want from a luxury heavy duty truck. The backseat is spacious enough to hold adults on road trips. It's got enough power to tow and haul a trailer fully loaded with wood. Four-wheel drive works spectacularly. All the interior amenities just increase the interior comfort. The seats are fantastic. Two things make it bring it down to a four-star, those are visibility out of the mirrors even with the cameras and fuel mileage which is to be expected with a big V8, just thought maybe even hauling empty, It would be above 16 or 17. All in all fantastic. Comfortable truck, mechanically no issues The infotainment center is a little bit buggy, but that doesn't bother me much. Quick reset and you're good to go…
    • 5.0

      Love this Truck!

      by Erick on 2/25/2026 11:54:52 AM

      Haven't had a problem with it 140k haven't touched it other than fluids and filters! Top of the line,!…
    • 5.0

      Fantastic Truck

      by TK2Camo on 2/14/2024 1:18:29 PM

      Solid and dependable, I still love this truck! Absolutely zero issues. Whether it's load after a home improvement run, pulling the camper into the mountains or across the country, or shifted into 4-wheeldrive...it does its job with excellence.…