2026 GMC Sierra 2500 HD Trims | Kokomo, IN

Heavy-duty muscle with a refined edge defines the 2026 GMC Sierra 2500 HD, a full-size pickup that works as comfortably on the highway as it does with a trailer in tow. Seven available trims let you match the cabin amenities, towing aids, and off-road equipment to your needs. Compare each of the 2026 GMC Sierra 2500 HD trims with this guide from the team at McGonigal Buick GMC, then visit our Sierra 2500 HD review for a broader look at engine specs and exterior color options.

When you're ready for a closer look, browse our inventory to see which trims are currently in stock at our dealership in Kokomo, IN. Questions are always welcome, so contact us online or call us at (765) 459-0381.

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GMC Sierra 2500 Exterior Parked in front of rocks

2026 GMC Sierra 2500 HD Trim Options

2026 GMC Sierra 2500 HD Pro

2026 GMC Sierra 2500 HD Pro

Ready for the jobsite or the campground, the 2026 GMC Sierra 2500 HD Pro pairs heavy-duty V8 power with practical trailering equipment and a straightforward, easy-to-clean cabin.

MSRP: Starting at $49,795
Cab Options: Regular, double, crew
Bed Options: Long, standard
2WD4WD

Key Features:
  • 6.6L V8 gas engine
    • 401 HP and 464 lb.-ft. of torque
  • Available 6.6L Duramax® turbo diesel V8 engine
    • 470 HP and 975 lb.-ft. of torque
  • Automatic locking rear differential
  • Allison® ten-speed automatic transmission
  • Trailering Package (included)
  • 2.5-in. receiver hitch
  • Trailering hitch platform
  • Four- and seven-pin connectors
  • Seven-wire electrical harness for trailer lights and brakes
  • Hitch guidance
  • Integrated trailer brake controller
  • 17-in. steel-painted silver wheels
  • Animated LED projector headlamps with LED turn signals and daytime running lamps
  • LED taillamps
  • Vertical trailering mirrors
  • Side bed step
  • CornerStep rear bumper
  • 12 cargo tie-downs
  • Vinyl seat upholstery
  • 40/20/40 split front bench seat with four-way manual outboard seats and under-seat storage
  • 60/40 split-folding rear bench seat (double and crew cab)
  • Rubberized vinyl floor covering
  • 3.5-in. driver information center
  • GMC Infotainment system with 7-in. color touchscreen
  • Wireless Apple CarPlay® and Android Auto™
  • Two speakers (regular cab) or six speakers (double and crew cab)
  • Wi-Fi® hotspot capability
  • Sierra HD Pro Safety
    • Forward collision alert
    • Following distance indicator
    • Front pedestrian braking
    • IntelliBeam® automatic high beams
    • Lane departure warning
    • Buckle to Drive technology
  • Automatic emergency braking
  • HD rear vision camera
  • Teen Driver technology
2026 GMC Sierra 2500 HD SLE

2026 GMC Sierra 2500 HD SLE

Everyday usability defines the 2026 GMC Sierra 2500 HD SLE, pairing cloth seating with large digital displays and convenient power outlets for your tools and devices.

MSRP: Starting at $56,795
Cab Options: Regular, double, crew
Bed Options: Long, standard
4WD

Key Features:
Most Pro features, plus:
  • 17-in. machined aluminum wheels
  • Power-adjustable vertical trailering mirrors with heated upper glass
  • EZ Lift tailgate with power lock and release
  • Cloth seat upholstery
  • Wrapped steering wheel
  • 12.3-in. multicolor digital driver information center
  • 13.4-in. GMC Premium Infotainment system with Google built-in
  • SiriusXM® with 360L capability
  • 120V power outlets in cab and bed
2026 GMC Sierra 2500 HD SLT

2026 GMC Sierra 2500 HD SLT

Cold-weather comfort takes center stage in the 2026 GMC Sierra 2500 HD SLT, along with connected trailering aids for towing days.

MSRP: Starting at $67,995
Cab Options: Crew
Bed Options: Long, standard
4WD

Key Features:
Most SLE features, plus:
  • ProGrade® trailering system
  • Hitch guidance with hitch view
  • In-vehicle trailering app
  • All-terrain tires
  • 18-in. machined aluminum wheels with dark gray metallic accents
  • Rear wheelhouse liners
  • LED fog lamps
  • Cargo area LED lighting
  • Rainsense™ automatic windshield wipers
  • Power-adjustable vertical trailering mirrors with power-folding/extending and auto-dimming upper glass
  • Perforated leather front seat upholstery
  • Ten-way power front seats, including two-way power lumbar
  • Heated front seats
  • Driver's memory feature
  • Up-level rear seat with storage package
  • Heated steering wheel
  • Dual-zone automatic climate control
  • Auto-dimming rearview mirror
  • Remote start
2026 GMC Sierra 2500 HD AT4

2026 GMC Sierra 2500 HD AT4

Rugged trail hardware and a confident stance prepare the 2026 GMC Sierra 2500 HD AT4 for rocky two-tracks, muddy launch ramps, and other off-pavement outings.

MSRP: Starting at $74,995
Cab Options: Crew
Bed Options: Long, standard
4WD

Key Features:
Most SLT features, plus:
  • Autotrac® two-speed transfer case
  • Off-road suspension
  • Hill descent control
  • Skid plates
  • Twin-tube Rancho® shocks
  • Red recovery hooks
  • 20-in. high-gloss black aluminum wheels
  • Spray-on bed liner
  • GMC MultiPro™ tailgate
  • Front bucket seats
  • Ventilated front seats
  • Heated rear outboard seats
  • Bose® seven-speaker premium sound system
  • Wireless charging
  • Adaptive cruise control
  • Front and rear park assist
  • HD surround vision
  • Trailer side blind zone alert
  • Rear cross-traffic alert
  • Safety alert seat
  • Bed view camera
  • Trailering camera provisions
2026 GMC Sierra 2500 HD Denali

2026 GMC Sierra 2500 HD Denali

Signature chrome styling and an amenity-rich cabin make the 2026 GMC Sierra 2500 HD Denali a distinguished pick for towing the camper in comfort.

MSRP: Starting at $77,995
Cab Options: Crew
Bed Options: Long, standard
4WD

Key Features:
Most SLT features, plus:
  • Autotrac two-speed transfer case
  • Off-road suspension
  • Hill descent control
  • Skid plates
  • Twin-tube Rancho shocks
  • 20-in. ultra bright machined aluminum wheels with bright chrome inserts
  • Signature chrome Denali grille
  • 6-in. chrome rectangular assist steps
  • Power sliding rear window
  • Front bucket seats
  • 12-way power front seats
  • Ventilated front seats
  • Heated rear outboard seats
  • Universal home remote
  • Bose seven-speaker sound system
  • Wireless charging
  • Adaptive cruise control
  • Front and rear park assist
  • HD surround vision
  • Trailer side blind zone alert
  • Rear cross-traffic alert
  • Safety alert seat
  • Bed view camera
  • Trailering camera provisions
2026 GMC Sierra 2500 HD AT4X

2026 GMC Sierra 2500 HD AT4X

Luxury meets trail-ready engineering in the 2026 GMC Sierra 2500 HD AT4X, combining full-grain leather seating with specialized off-road suspension hardware.

MSRP: Starting at $87,995
Cap Options: Crew
Bed Options: Standard
4WDW

Key Features:
Most AT4 features, plus:
  • Driver-selectable full-locking rear e-locking differential
  • Off-road suspension with 1.5-in. lift and Multimatic DSSV dampers
  • Steel transfer case skid plates
  • Aluminum front skid plates
  • 35-in. MT tires
  • 18-in. machined aluminum wheels with high-gloss black accents
  • Power-retractable assist steps with LED perimeter lighting
  • Power sliding rear window
  • Power sunroof
  • Full-grain leather seat upholstery
  • 16-way power front seats with massage
  • Leather-wrapped steering wheel
  • 15-in. head-up display
  • Bose Premium Series sound system with 12 speakers and Centerpoint®
  • MultiPro tailgate audio system by Kicker®
  • Rear camera mirror
2026 GMC Sierra 2500 HD Denali Ultimate

2026 GMC Sierra 2500 HD Denali Ultimate

A standard 6.6L Duramax turbo diesel V8 engine anchors the 2026 GMC Sierra 2500 HD Denali Ultimate, matched with top-shelf materials and technology throughout the cabin.

MSRP: Starting at $96,995
Cab Options: Crew
Bed Options: Long, standard
4WD

Key Features:
Most Denali features, plus:
  • 6.6L Duramax turbo diesel V8 engine
    • 470 HP and 975 lb.-ft. of torque
  • Diesel exhaust brake
  • 20-in. ultra-bright machined aluminum wheels with gloss black inserts
  • Signature Vader Chrome grille
  • Power-retractable assist steps with LED perimeter lighting
  • Spray-on bed liner
  • Power sunroof
  • Full-grain leather seat upholstery
  • 16-way power front seats with massage
  • Leather-wrapped steering wheel
  • Authentic open-pore Paldao wood trim
  • 15-in. head-up display
  • Bose Premium Series sound system with 12 speakers and Centerpoint
  • MultiPro tailgate audio system by Kicker
  • Rear camera mirror

2026 GMC Sierra 2500 Available Packages

Tailor your 2026 GMC Sierra 2500 HD with one of the many packages offered across the lineup. Highlights include the available X31 Off-Road Package, which brings an off-road suspension, hill descent control, and skid plates to select trims, and the Max Trailering Package for demanding towing jobs. A few options are exclusive to a single trim, such as the AT4X AEV® Edition.

Popular package options include:

  • X31 Off-Road Package (Pro, SLE, SLT)
  • Max Trailering Package (Pro, SLE, SLT, AT4, Denali, Denali Ultimate)
  • Sierra HD Pro Safety Plus Package (SLE, SLT)
  • Cargo Convenience Package (SLT, AT4, Denali, AT4X, Denali Ultimate)
  • SLT Premium Package (SLT)
  • Technology Package (AT4, Denali)
  • Denali Reserve Package (Denali)
  • AT4X AEV Edition (AT4X)

2026 GMC Sierra 2500 FAQs

What engine options are offered on the 2026 GMC Sierra 2500 HD?

The 2026 GMC Sierra 2500 HD comes standard with a 6.6L V8 gas engine that produces 401 horsepower and 464 pound-feet of torque. An available 6.6L Duramax turbo diesel V8 engine raises output to 470 horsepower and 975 pound-feet of torque.

What off-road capability features are available on the 2026 GMC Sierra 2500 HD?

The available X31 Off-Road Package adds an off-road suspension, hill descent control, and skid plates to the 2026 GMC Sierra 2500 HD Pro, SLE, and SLT. The AT4 and AT4X build on that hardware with an Autotrac two-speed transfer case, twin-tube Rancho shocks, and other trail-focused equipment.

How is cargo access and loading supported in the 2026 GMC Sierra 2500 HD?

A side bed step, a CornerStep rear bumper, and 12 cargo tie-downs make it easier to reach and secure your load in the 2026 GMC Sierra 2500 HD. The available GMC MultiPro tailgate provides six functions, working as a primary gate, a primary gate with load stop, an easy access mode, a full-width step, an inner gate with load stop, and an inner gate work surface to simplify loading, unloading, and bed access.

2025 GMC Sierra 2500 HD Model Information | Kokomo, IN

Superior control, exceptional towing, and premium sophistication come together in the 2025 GMC Sierra 2500 HD. Burly trailering power helps you complete a variety of tasks on and off the jobsite, while a plush interior grants you sanctuary after a hard day’s work. Ready to learn more? Read through the following 2025 GMC Sierra 2500 HD review written by the experts at McGonigal Buick GMC. For a look at each model’s standard features, visit our comprehensive Sierra 2500 HD trims guide. 

Explore our inventory to find your ideal trim, and pair it with a finance or lease offer for an attractive rate. When you’re ready to experience the 2025 Sierra 2500 HD firsthand, visit our GMC dealership in Kokomo, IN. Have questions? Contact us online or call us at (765) 319-8473.

2025 GMC Sierra 2500 HD Exterior Design

The 2025 GMC Sierra 2500 HD showcases a bold, captivating design packed with the functionality you need to get the job done. Optional trailering mirrors enhance towing capabilities with their powered extension, retraction, and folding functions. Additional exterior convenience features include auxiliary spot lamps, amber clearance lights, perimeter lighting, and auto-dimming upper glass. For customizable flair, outfit your Sierra 2500 HD with a range of attractive 17-, 18-, or 20-inch wheel options.

Simplify your latest haul with the six-function MultiPro™ tailgate, which includes remote release, a load stop, and a fold-down inner gate that can be used as a full-width step or a work surface. When you want to bring the party with you from the tailgate to the campsite, this MultiPro tailgate comes with an integrated audio system by Kicker®.

Available exterior features include:

  • 17-, 18-, and 20-in. machined aluminum wheels
  • Animated LED projector headlamps with LED turn signals and daytime running lamps
  • LED fog lamps
  • Vertical trailering mirrors
  • Side bed step
  • CornerStep rear bumper
  • 12 cargo tie-downs
  • EZ Lift tailgate with power lock and release
  • Rainsense™ automatic wipers
  • Cargo area LED lighting
  • GMC MultiPro tailgate
  • MultiPro tailgate audio system by Kicker

2025 GMC Sierra 2500 HD Interior Design & Technology

Experience first-class comfort inside the 2025 GMC Sierra 2500 HD. Choose from vinyl, cloth, or perforated leather seat upholstery options, and enjoy premium relaxation with up to 16-way power adjustability for the front seats. Additionally, the front seats offer a massaging feature to help make you feel rejuvenated after a long day on the job. When you want to warm up during cold-weather drives, opt for a heated steering wheel as well as heated front and rear outboard seats. 

Find a sleek, innovative command center in the 2025 Sierra 2500 HD. Access all your essentials on a vibrant, available 12.3-inch digital driver information center. Optimize every drive when you pair your smartphone with the optional 13.4-inch GMC Premium Infotainment System. Ready to experience seamless connectivity on the go? Wi-Fi® hotspot capability and available wireless charging help you stay in touch. When you want to level up everyone’s entertainment experience, enjoy an available 12-speaker Bose® Premium Series audio system with Centerpoint® surround sound. 

Available interior features include:

  • 40/20/40 split-bench front seat with under-seat storage
  • 16-way power-adjustable and massaging front seats
  • 60/40 split-folding rear bench seat
  • Full-grain leather seats
  • Dual-zone automatic climate control
  • Heated and ventilated front seats
  • Heated steering wheel
  • Heated rear outboard seats
  • Power sliding rear window with rear defogger
  • Power sunroof

Available technology features include:

  • 12.3-in. color driver information center
  • Six speakers, or Bose seven- or 12-speaker premium sound systems
  • 13.4-in. GMC Premium Infotainment System with Google built-in
  • Bluetooth®
  • Wireless Apple CarPlay® and Android Auto™
  • Wi-Fi hotspot capable
  • SiriusXM® 360L capability
  • Rear camera mirror
  • Wireless charging

2025 GMC Sierra 2500 HD Engine & Performance

When you require robust power for your every day, the 2025 GMC Sierra 2500 HD has your needs in mind. Choose two engine options when configuring your ideal Sierra 2500 HD — a 401-horsepower standard 6.6L V8 gas engine or a 6.6L Duramax® turbo diesel V8 engine that delivers 470 horsepower and an impressive 975 pound-feet of torque. Either option pairs with a smooth-shifting ten-speed Allison® automatic transmission and offers rear-wheel drive (RWD) or four-wheel drive (4WD). 

See the accompanying chart for engine specifications. 

Engine

6.6L V8 gas

6.6L Duramax turbo diesel V8

Horsepower

401 HP

470 HP

Torque

464 lb.-ft.

975 lb.-ft.

Drivetrain

RWD / 4WD

Transmission

Ten-speed Allison automatic

2025 GMC Sierra 2500 HD Towing & Payload

The 2025 GMC Sierra 2500 HD is designed to help you achieve greatness with exceptional heavy-duty towing prowess. When you choose the crew cab configuration, you can achieve a maximum conventional trailering capacity of 20,000 pounds. When you have heavier loads to manage, the Sierra 2500 HD offers a maximum fifth-wheel/gooseneck trailering capacity. Additionally, superb hauling capabilities help you power through your day with up to a 4,064-pound payload capacity with the regular cab configuration. 

Want to maximize convenience? The 2025 GMC Sierra 2500 HD offers a variety of trailering tech to make towing a breeze. The ProGrade® trailering system improves towing performance with innovative features, including an in-vehicle app for trailering and assistance for hitching, which comes with a view of the hitch. Plus, you can optimize your workflow with up to 14 available camera views. If you’re taking your heavy loads on the open road, the adaptive cruise control with trailering helps account for drag and increased braking distances. 

See the accompanying chart for towing and payload capacities.

2025 GMC Sierra 2500 HD Cab Size

Max. Conventional Trailering Capacity

Max. Fifth-Wheel/Gooseneck Trailering Capacity

Max. Payload Capacity

Regular

14,500 lbs.

22,390 lbs.

4,064 lbs.

Double

17,900 lbs.

18,600 lbs.

3,788 lbs.

Crew

20,000 lbs.

21,870 lbs.

3,859 lbs.

2025 GMC Sierra 2500 HD Capacity & Seating

The 2025 GMC Sierra 2500 HD combines practicality and versatility, making it suitable for both work duties and everyday driving. It offers two bed lengths: a standard 82.3-inch option and a longer 98.3-inch version. Additionally, the Sierra 2500 HD features three cab configurations. The regular cab seats three passengers and is only available with the long bed. Configure the double cab or spacious crew cab with either bed length and transport six passengers.

See the accompanying chart for cab dimensions. 

Cab Style

Regular

Double

Crew

Passenger Capacity

Three

Six

Six

Headroom (front/rear)

43.1 / N/A in.

43 / 39.9 in.

43 / 40.1 in.

Legroom (front/rear)

44.5 / N/A in.

44.5 / 35.2 in.

44.5 / 43.4 in.

Shoulder Room (front/rear)

66 / N/A in.

66 / 64.9 in.

66 / 65.3 in.

Hip Room (front/rear)

60.9 / N/A in.

61.1 / 60.2 in.

61.1 / 60.2 in.

Bed Size Options

Long

Standard or long

2025 GMC Sierra 2500 HD Safety Options

Enjoy a strong sense of security in the 2025 GMC Sierra 2500 HD. Confidently press forward with a range of cutting-edge safety and driver assistance features, including the standard Sierra HD Pro Safety package, which includes automatic emergency braking and lane departure warning. Additional technologies like forward collision alert, pedestrian braking, and rear cross-traffic alert help keep you aware of your surroundings at all times. When you want to make parking a breeze, utilize a rear vision or surround vision camera as well as front and rear park assist.

Available safety features include:

  • Forward collision alert
  • Lane departure warning
  • Automatic emergency braking
  • Front pedestrian braking
  • HD rear vision or surround vision camera 
  • Integrated trailer brake controller
  • Bed view camera
  • Front and rear park assist
  • Rear cross-traffic alert
  • Head-up display

2025 GMC Sierra 2500 HD Available Colors

  • Summit White
  • Onyx Black
  • Cardinal Red
  • Sterling Metallic
  • Downpour Metallic
  • Thunderstorm Gray
  • Titanium Rush Metallic
  • Volcanic Red Tintcoat
  • White Frost Tricoat

2025 GMC Sierra 2500 HD Available Trims

  • Pro — $48,495
  • SLE — $55,395
  • SLT — $66,895
  • AT4 — $73,195
  • Denali — $76,095
  • AT4X — $85,395
  • Denali Ultimate — $95,495

2026 GMC Sierra 2500 New GMC Sierra 2500 HD for Sale in Kokomo, IN

Our team at McGonigal Buick GMC would love to show you the 2026 GMC Sierra 2500 HD in person. Browse our inventory to see which trims are currently available at our Kokomo, IN dealership, then stop by for a firsthand look at your favorite. We're here for any questions, so contact us online or call us at (765) 459-0381.

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Disclaimer: The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

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