The 2025 GMC Sierra 2500 HD is a seriously capable heavy-duty truck that offers excellent capability without compromising on comfort and technological convenience.
Pro
The foundational trim of the Sierra 2500 HD is set up for raw power and reliability. A 6.6-liter V8 gas engine comes as standard, paired with an Allison® 10-speed automatic transmission. The result is a mighty 401 hp and 464 lb-ft of torque. For even greater power, there’s the available Duramax 6.6-liter Turbo-Diesel V8.
SLE
The SLE trim builds on everything the Pro has to offer to further blend practicality and modern convenience. Alongside the 13.4-inch diagonal center touchscreen, the SLE enjoys all the standard features of the Pro, adding extra functionality like the Traction Select System with Tow/Haul mode.
SLT
The SLT takes things one step further, incorporating all the standard features of the SLE while adding extra luxury touches like 10-way power driver and front outboard passenger heated seats with lumbar support. A heated steering wheel provides supreme driver comfort all year round. The versatile MultiPro Tailgate comes as standard, as does the ProGrade® Trailering System with In-Vehicle Trailering App.
AT4
Built for adventure, the AT4 comes with the Off-Road Suspension Package with twin-tube Rancho shocks and skid plates as standard. Standard Adaptive Cruise Control makes on-road driving a breeze, too. The AT4 has exclusive Jet Black interior with Kalahari accents and heated and ventilated perforated leather front seats add a distinctive touch of style and comfort to this ruggedly capable off-road trim.
AT4X
The AT4X takes the off-road prowess of the AT4 to even greater heights. In addition to the AT4 standard features, it also boasts:
- Multimatic® DSSV dampers
- Rear electronic-locking differential
- Factory-installed 1.5-inch suspension lift
- 35-inch Goodyear Territory MT tires
Denali
Luxury is the focus of the Denali trims. The Denali enjoys premium touches like the trim-exclusive authentic open-pore wood, patterned aluminum trim, and perforated leather seats. There are 12-way heated and ventilated power front seats for added luxury in your truck as well.
Denali Ultimate
The Denali Ultimate trim takes the luxury adornments even further. The exclusive Alpine Umber interior boasts full-grain leather seating and open-pore Paldao wood trim pieces. A premium Bose sound system allows for ultimate audio enjoyment inside the luxurious, comfortable cabin.
Which of the 2025 Sierra 2500 HD Trims in Stillwater, OK Do You Want to Explore Further?
Experience this refined powerhouse for yourself. Contact Wilson GMC Stillwater in Stillwater, OK today to arrange a test drive of the 2025 Sierra 2500 HD.
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