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2025 GMC Sierra 2500 HD Model Information in Fort Wayne, IN
Refined, relentless, and a testament to rugged performance, the 2025 GMC Sierra 2500 HD makes a bold statement with its striking design and formidable strength. With an available 6.6L Duramax® turbo diesel V8 engine beneath the hood, the Sierra 2500 HD redefines what a heavy-duty workhorse can be, delivering immense capability and unmistakable style without compromising on power. Learn more about the 2025 GMC Sierra 2500 HD with this comprehensive review prepared by the team at Tom Kelley Buick GMC.
The 2025 GMC Sierra 2500 HD offers seven distinct trims, each showcasing unique performance features and design elements. To compare the GMC Sierra 2500 HD price options and standard features, view our detailed trims guide.
Browse our inventory to discover the 2025 GMC Sierra 2500 HD for sale in Fort Wayne that aligns with your towing and payload needs. Schedule a test drive to get behind the wheel at our Fort Wayne, IN, dealership. Our GMC experts are here to answer any questions you may have — call us at (260) 255-4986 or contact us online.
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2025 GMC Sierra 2500 HD Exterior Design
With its muscular stance and refined detailing, the 2025 GMC Sierra 2500 HD is a powerhouse that turns heads with its bold exterior design and practical sophistication. Available trailering mirrors and auto-dimming upper glass enhance confidence when hauling, offering power extension, folding, and retraction capabilities. Advanced lighting features like auxiliary spot lamps, amber clearance lamps, and perimeter lighting heighten visibility wherever you are. Accentuated by available 20-inch wheels with a bright machined face and dark painted pockets, the SLE and SLT trims bring a refined edge to rugged capability.
The innovative MultiPro™ tailgate adds functionality with a key fob release, integrated step, work surface, and an inner gate designed with a safety-disable function for added protection when towing equipment is connected. Enjoy listening to your favorite music when you’re hard at work on the job or relaxing on the campsite with the sonic clarity of the available Kicker® audio system built into the tailgate.
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 MultiProtailgate
2025 GMC Sierra 2500 HD Interior Design & Technology
An array of premium amenities awaits in the 2025 GMC Sierra 2500 HD, enhancing comfort for you and your passengers wherever the journey takes you. Sink into plush accommodations like available vinyl, cloth, or sumptuous perforated leather seat upholstery. Available 16-way power front seats with massage functionality bring just the right amount of tailored luxury. Escape the chills of winter with available heated front and rear outboard seats and a heated steering wheel.
The crew cab configuration delivers exceptional spaciousness, offering best-in-class front headroom and legroom. See interior specifications for all three cab configurations in the Capacity & Seating section below.
The 2025 GMC Sierra 2500 HD surrounds you with an impressive selection of modern innovations. The available 13.4-inch GMC Premium Infotainment System includes Google built-in that seamlessly integrates with your smartphone via Apple CarPlay® and Android Auto™, putting a multitude of intuitive technology features right at your fingertips. An available wireless charging pad keeps your devices powered up on the go. A 12-speaker Bose® Premium Series system is available, providing a rich and immersive sound experience when listening to your favorite playlists and podcasts.
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
- MultiPro tailgate audio system by Kicker
- 13.4-in. GMC Premium Infotainment System with Google built-in
- Bluetooth®
- Wireless Apple CarPlay and Android Auto
- Wi-Fi® hotspot capable
- SiriusXM® 360L
- In-vehicle trailering app
- Wireless charging
2025 GMC Sierra 2500 HD Engine & Performance
A heavy-duty workhorse requires a formidable powertrain. The 2025 GMC Sierra 2500 HD offers two robust engine choices tailored for serious capability, including the standard 6.6L V8 gas engine and available 6.6L Duramax turbo diesel V8. The 6.6L V8 gas engine generates an impressive 401 horsepower and 464 pound-feet of torque. For enhanced prowess, the 6.6L Duramax turbo diesel V8 unleashes 470 horsepower and a staggering 975 pound-feet of torque. Both pair with a ten-speed Allison® automatic transmission and are available in rear-wheel drive (RWD) or four-wheel drive (4WD) configurations.
View engine specifications in the accompanying table.
| 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 | |
View towing and payload capacities in the accompanying table.
| 2025 GMC Sierra 2500 HD Cab Size | Regular | Double | Crew |
|---|---|---|---|
| Max. Conventional Trailering Capacity | 14,500 lbs. | 17,900 lbs. | 20,000 lbs. |
| Max. Fifth-Wheel/Gooseneck Trailering Capacity | 22,390 lbs. | 18,600 lbs. | 21,870 lbs. |
| Max. Payload Capacity | 4,064 lbs. | 3,788 lbs. | 3,859 lbs. |
2025 GMC Sierra 2500 HD Capacity & Seating
Boasting maximized practicality, the 2025 GMC Sierra 2500 HD adapts to your professional demands and everyday lifestyle. The Sierra 1500 HD offers two bed lengths — an 82.3-inch standard bed and a 98.3-inch long bed — and is paired with three versatile cab configurations. Choose from a regular cab built exclusively with the long bed for three-passenger seating, or opt for the double cab or spacious crew cab, each accommodating up to six passengers and available with either bed size.
View cab dimensions in the following table.
| Cab Style | Regular | Double | Crew |
|---|---|---|---|
| Passenger Capacity | Three | Six | Six |
| Headroom (front/rear) | 43.1 / N/A in. | 43.03/39.88 in. | 43.03/40.12 in. |
| Legroom (front/rear) | 44.53 / N/A in. | 44.53/35.24 in. | 44.53/43.4 in. |
| Shoulder Room (front/rear) | 66.06 / N/A in. | 66.02/64.88 in. | 66.02/65.3 in. |
| Hip Room (front/rear) | 60.9 / N/A in. | 61.18/60.24 in. | 61.18/60.24 in. |
| Bed Size Options | Long | Standard or long | |
2025 GMC Sierra 2500 HD Safety Options
Confidence comes standard in the 2025 GMC Sierra 2500 HD, equipped with a suite of advanced safety and driver assistance technologies. The Sierra HD Pro Safety package, standard across the Sierra 2500 HD lineup, integrates features such as automatic emergency braking and lane departure warning to help enhance your awareness and control. For towing prowess, the available ProGrade® trailering system offers intelligent innovations like an in-vehicle trailering app and hitch guidance with hitch view.
The 2025 GMC Sierra 2500 HD offers an advanced suite of up to 14 available camera views, each designed to enhance visibility, simplify towing, and provide greater confidence in maneuvering across a multitude of driving conditions.
Available safety features include:
- Forward collision alert
- Lane departure warning
- Automatic emergency braking
- Front pedestrian braking
- HD rear vision camera or surround vision
- Hitch guidance
- Integrated trailer brake controller
- Hitch view
- Bed view camera
- ProGrade trailering system
- Front and rear park assist
- Rear cross-traffic alert
- Trailer side blind zone alert
- Rear camera mirror
- 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*
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