2026 GMC Sierra 3500 HD Truck Overview

The standard features of the GMC Sierra 3500HD Pro include 6.6L V-8 401hp engine, 10-speed automatic transmission with overdrive, 4-wheel anti-lock brakes (ABS), Side seat mounted airbags, Curtain 1st row overhead airbag, Airbag occupancy sensor, Air conditioning, 18" steel wheels, Cruise control, ABS and driveline traction control, Electronic stability

2026 GMC
Sierra 3500 HD Truck

Starting at: $48,200

  • Manufacturer Offer

    No Monthly Payments for 130 Days for Well-Qualified Buyers When Financed w/ GM Financial

    * Read full offer details
    Applies to this new 2026 GMC Sierra 3500 HD

    * Disclaimer(s)

    • Deferred monthly payments for 130 days. Finance charges accrue from date of financing. Must finance with GM Financial. Down payment required at signing, if applicable. Offer not available in PA. Some customers may not qualify. Not available with lease and some other offers. 4.9% APR for 48 months for well-qualified buyers when financed w/GM Financial. Monthly payment is $22.98 for every $1000 you finance. Average example down payment is 10.0%. Not available with leases and some other offers. Must take new retail delivery by 06/30/2026. Truth in Lending Act Disclosure: Down payment will vary with APR and credit. For example, 4.9% APR with $2,500 down payment provides for 48 monthly payments of $22.98 per $1000 financed for qualified buyers. 4.9% APR for a term of 36 months corresponds to a monthly cost of $29.93 per $1000 financed. 6.9% APR for a term of 84 months corresponds to a monthly cost of $15.04 per $1000 financed. 6.9% APR for a term of 72 months corresponds to a monthly cost of $17 per $1000 financed. 5.9% APR for a term of 60 months corresponds to a monthly cost of $19.29 per $1000 financed. The rates described are for estimation purposes only; you may not be able to finance at this rate.

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  • Manufacturer Offer

    Bonus Cash

    * Read full offer details
    Applies to this new 2026 GMC Sierra 3500 HD

    * Disclaimer(s)

    • Not available with some other offers. Must take new retail delivery by 06/30/2026.

      See Trims

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Inventory

  • 2026 GMC Sierra 3500 HD Denali

    • MSRP:$93,620
    • Dealer Discount:$4,002
    • Final Price:$89,618
    • Offers:$2,000
    • Final Price:$87,618
    Engine:
    6.6L V-8 Diesel,
    Transmission:
    Automatic,
    Drive Line:
    4WD,
    Exterior Color:
    Onyx Black,
    Interior Color:
    Jet Black, Forge Perforated Leather seating surfac,
    Stock #:
    45T529
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    • VIN Badges: {}
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  • 2026 GMC Sierra 3500 HD AT4

    • MSRP:$90,564
    • Dealer Discount:$8,274
    • Final Price:$82,290
    • Offers:$1,000
    • Final Price:$81,290
    • Conditional Offers:$1,000
    Engine:
    6.6L V-8 Diesel,
    Transmission:
    Automatic,
    Drive Line:
    4WD,
    Exterior Color:
    Summit White,
    Interior Color:
    Jet Black with Kalahari accents, Perforated Front,
    Stock #:
    15T1761
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    • VIN Badges: {}
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  • 2026 GMC Sierra 3500 HD AT4

    • MSRP:$92,144
    • Dealer Discount:$1,843
    • Final Price:$90,301
    • Offers:$1,000
    • Final Price:$89,301
    Engine:
    6.6L V-8 Diesel,
    Transmission:
    Automatic,
    Drive Line:
    4WD,
    Exterior Color:
    Summit White,
    Interior Color:
    Jet Black with Kalahari accents, Perforated Front,
    Stock #:
    43T2525
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    • VIN Badges: {}
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  • 2026 GMC Sierra 3500 HD Denali Ultimate

    Engine:
    6.6L V-8 Diesel,
    Transmission:
    Automatic,
    Drive Line:
    4WD,
    Exterior Color:
    Glacier White Tricoat,
    Interior Color:
    Alpine Umber, Full Grain Leather seating surfaces,
    Stock #:
    43T2610
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    • VIN Badges: {}
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  • 2026 GMC Sierra 3500 HD Denali Ultimate

    Engine:
    6.6L V-8 Diesel,
    Transmission:
    Automatic,
    Drive Line:
    4WD,
    Exterior Color:
    Onyx Black,
    Interior Color:
    Alpine Umber, Full Grain Leather seating surfaces,
    Stock #:
    43T2512
    More
    • VIN Badges: {}
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Specifications

  • Rear cargo - tailgate
  • Power door mirrors
  • Heated door mirrors
  • Turn signal indicator mirrors
  • Bumpers - chrome
  • Rear step bumper
  • Trailer hitch
  • Trailer sway control
  • Hitch Class - IV
  • Engine liters - 6.6L
  • Compressor - Not Available
  • Cylinder configuration - V-8
  • Horsepower - 401hp @ 5,200RPM
  • Torque - 464 lb.-ft. @ 4,000RPM
  • Number of valves - 16
  • Variable valve control
  • Engine location - front
  • Hybrid electric powertrain type - none
  • Hybrid traction battery type - none
  • Electric motor horsepower - none
  • Hybrid system net power - none
  • Recommended fuel - Regular Unleaded
  • Transmission - 10 speed automatic
  • Mode select transmission
  • Manual-shift auto
  • Drive type - rear-wheel
  • Fuel tank capacity - 36.0gal.
  • Rear locking differential
  • Hybrid system combined power torque - none
  • Electric motor 1 torque - none
  • Standard fuel economy fuel type - gasoline
  • Basic warranty - 36 months/36,000miles
  • Powertrain warranty - 60 months/60,000miles
  • Corrosion perforation warranty - 72 months/100,000miles
  • Roadside assistance coverage - 60 months/60,000miles
  • Maintenance warranty - 12 months/ unlimited distance
  • Front wheel independent suspension
  • Front anti-roll bar
  • Power steering
  • Front tires - 275/70SR18.0E
  • Rear tires - 275/70SR18.0E
  • Single rear wheels
  • Wheel size - 18"
  • Tires - all-terrain
  • Engine displacement - 6.6 L
  • Engine torque - 464 lb.-ft. @ 4,000RPM
  • Engine bore x stroke - 103.3mm x 98.0mm (4.07" x 3.86")
  • Compression ratio - 10.80 to 1
  • Payload - 2,079kg (4,583lbs)
  • Curb weight - 2,871kg (6,329lbs)
  • GVWR - 4,967kg (10,950lbs)
  • Towing capacity - 6,577kg (14,500lbs)
  • Exterior length - 6,002mm (236.3")
  • Exterior body width - 2,079mm (81.8")
  • Exterior height - 2,056mm (80.9")
  • Wheelbase - 3,607mm (142.0")
  • Turning radius - 7.1m (23.5')
  • Front legroom - 1,131mm (44.5")
  • Front headroom - 1,095mm (43.1")
  • Front hiproom - 1,547mm (60.9")
  • Front shoulder room - 1,678mm (66.1")
  • AM/FM radio
  • Premium audio system - GMC Infotainment System
  • Speakers - 2
  • Turn-by-turn navigation directions - OnStar Turn-by-Turn Navigation
  • Wireless phone connectivity
  • 1st row LCD monitors - 1
  • Primary LCD size - 7.0"
  • Smart device integration
  • Fully automatic headlights
  • Delay-off headlights
  • Auto high-beam headlights
  • Variably intermittent wipers
  • Front reading lights
  • Appearance - analog
  • Tachometer
  • Voltmeter
  • Oil pressure gauge
  • Compass
  • Outside temperature display
  • Low tire pressure warning
  • Trip computer
  • Lane departure - warning
  • Exterior parking camera rear
  • Forward collision - mitigation
  • 4 wheel disc brakes
  • ABS brakes
  • Brake assist
  • Dual front impact airbags
  • Dual front side impact airbags
  • Overhead airbag
  • Occupant sensing airbag
  • Panic alarm
  • Perimeter/approach lights
  • Ignition disable
  • Electronic stability
  • Traction control
  • Front pedestrian detection - prevention
  • Max seating capacity - 3
  • Front seats - bench
  • Front center armrest - w/storage
  • Seat Upholstery - vinyl
  • Ground clearance (min) - 285mm (11.2")
  • Air conditioning
  • Speed control
  • Power windows
  • 1-touch down
  • 1-touch up
  • Remote keyless entry
  • Proximity key - push button start only
  • Illuminated entry
  • Tilt steering wheel
  • Passenger vanity mirror
  • Emergency communication system - OnStar Services capable
  • Front beverage holders
  • Overhead console
  • Driver door bin
  • Passenger door bin

Trims

  MSRP Engine Transmission City/Hwy mpg
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $48,200   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $49,600   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $50,300   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $51,000   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $51,700   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $51,900   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $52,100   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $52,400   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $53,100   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $53,500   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $54,500   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $54,700   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $54,900   401-hp 6.6L 8-cyl  10-spd auto  No Data  
SLE 2026 GMC Sierra 3500 HD Truck SLE Search New $55,200   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Pro 2026 GMC Sierra 3500 HD Truck Pro Search New $56,300   401-hp 6.6L 8-cyl  10-spd auto  No Data  
SLE 2026 GMC Sierra 3500 HD Truck SLE Search New $56,700   401-hp 6.6L 8-cyl  10-spd auto  No Data  
SLE 2026 GMC Sierra 3500 HD Truck SLE Search New $57,500   401-hp 6.6L 8-cyl  10-spd auto  No Data  
SLE 2026 GMC Sierra 3500 HD Truck SLE Search New $58,900   401-hp 6.6L 8-cyl  10-spd auto  No Data  
SLE 2026 GMC Sierra 3500 HD Truck SLE Search New $59,100   401-hp 6.6L 8-cyl  10-spd auto  No Data  
SLE 2026 GMC Sierra 3500 HD Truck SLE Search New $59,300   401-hp 6.6L 8-cyl  10-spd auto  No Data  
SLE 2026 GMC Sierra 3500 HD Truck SLE Search New $60,600   401-hp 6.6L 8-cyl  10-spd auto  No Data  
SLT 2026 GMC Sierra 3500 HD Truck SLT Search New $66,400   401-hp 6.6L 8-cyl  10-spd auto  No Data  
SLT 2026 GMC Sierra 3500 HD Truck SLT Search New $66,600   401-hp 6.6L 8-cyl  10-spd auto  No Data  
SLT 2026 GMC Sierra 3500 HD Truck SLT Search New $68,000   401-hp 6.6L 8-cyl  10-spd auto  No Data  
AT4 2026 GMC Sierra 3500 HD Truck AT4 Search New $73,400   401-hp 6.6L 8-cyl  10-spd auto  No Data  
AT4 2026 GMC Sierra 3500 HD Truck AT4 Search New $73,600   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Denali
Search New
$76,300   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Denali
Search New
$76,500   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Denali
Search New
$79,300   401-hp 6.6L 8-cyl  10-spd auto  No Data  
Denali Ultimate 2026 GMC Sierra 3500 HD Truck Denali Ultimate Search New $97,600   470-hp 6.6L 8-cyl  10-spd auto  No Data  
Denali Ultimate 2026 GMC Sierra 3500 HD Truck Denali Ultimate Search New $97,800   470-hp 6.6L 8-cyl  10-spd auto  No Data  
Denali Ultimate 2026 GMC Sierra 3500 HD Truck Denali Ultimate Search New $101,700   470-hp 6.6L 8-cyl  10-spd auto  No Data  

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Vehicle Information & Availability

Vehicle listings on this website are provided for general informational purposes. While every effort has been made to ensure accurate display of vehicle information, including equipment, accessories, colors, and specifications, data is sourced from multiple providers and may not always reflect the exact configuration of a specific vehicle. Vehicle photos may be representative examples of the model and may not depict the actual unit available for sale. Accessories and colors may vary. All inventory is subject to prior sale.

Vehicles may be transferred between Kunes Auto Group locations at customer request. A transfer fee of $300 will be added to the purchase transaction to cover transportation costs when a vehicle is moved from its listed location. To avoid this fee, customers may take delivery of the vehicle at the dealership where it is currently listed for sale.

Fuel Economy (EPA) Ratings

Any fuel economy figures shown are based on the model year EPA mileage ratings and are provided for comparison purposes only. Your actual fuel economy will vary depending on how you drive and maintain your vehicle, driving conditions, vehicle load, climate, and other factors. For hybrid and plug-in hybrid vehicles, fuel economy will also vary based on battery pack age and condition. For more information about EPA fuel economy ratings, visit https://www.fueleconomy.gov.

General Disclaimer

All information on this website is provided on an “as is” basis without warranty of any kind, express or implied. Kunes Auto Group and its third-party data providers are not responsible for errors or omissions in vehicle listings, pricing, or incentive information. Nothing on this website constitutes a binding offer or contract. All sales are subject to a written purchase agreement signed by both the customer and an authorized Kunes Auto Group representative. This disclaimer applies to all Kunes Auto Group dealership locations in Illinois, Wisconsin, Iowa, and Minnesota and is subject to change without notice.

If you have questions about any information on this website or would like clarification on fees, financing, or vehicle details, please contact your local Kunes Auto Group dealership. We are happy to walk you through all terms and charges before you make any decisions. Disclaimer Updated - May 2026