New GMC Sierra 2500 for sale in Boise and Nampa, ID
Discover the Commanding 2025 GMC Sierra 2500HD in Boise
Are you looking for a powerful, fun-to-drive heavy-duty pickup truck? At Dennis Dillon GMC, your trusted Boise GMC dealer that's been family-owned and operated for 50 years, we're thrilled to showcase the 2025 GMC Sierra 2500HD. Whether you need a dependable workhorse for tough job sites or a well-appointed truck for both work and play, the Sierra 2500HD delivers. Keep reading to learn all about the latest Sierra 2500HD.
Trim Levels
The 2025 GMC Sierra 2500HD has seven trim levels for customers to choose from:
- Pro: A well-equipped base trim with steel wheels, manual air conditioning, a seven-inch touchscreen, a Wi-Fi hotspot, and a suite of safety tech features.
- SLE: Adds alloy wheels, a 13.4-inch touchscreen, cloth seats, carpeted floors, and a digital gauge cluster.
- SLT: Adds all-terrain tires, dual-zone automatic climate control, leather seats, and power-adjustable front seats.
- AT4: An off-road trim with standard four-wheel drive, hill descent control, skid plates, recovery hooks, and additional safety features.
- Denali: A luxury trim with side assist steps, premium leather seats, navigation, and a Bose® sound system.
- AT4X: Builds on the AT4 with a raised off-road suspension, advanced adaptive dampers, stronger skid plates, and a driver-selectable locking rear differential.
- Denali Ultimate: Builds on the Denali with a diesel engine, a 12-speaker Bose® sound system, a Kicker tailgate audio system, and power-deploying side assist steps.

Powertrains Built for Serious Work
Under the hood, the Sierra 2500HD offers two formidable engine choices. The mighty 6.6-liter V8 gas engine churns out an impressive 401 horsepower and 464 pound-feet of torque, providing ample muscle for demanding tasks. For those craving even more power, the available 6.6-liter turbodiesel V8 unleashes a staggering 470 horsepower and a massive 975 pound-feet of torque. Paired with a 10-speed Allison automatic transmission and your choice of rear-wheel or four-wheel drive, these powertrains make easy work of heavy loads and challenging terrain.
Configurations to Match Your Needs
The 2025 GMC Sierra 2500HD offers versatile body style configurations to accommodate your unique needs. Choose from the spacious crew cab with a standard bed or long bed, the practical double cab with a standard bed or long bed, or the straightforward regular cab with a long bed. With a variety of cab and bed combinations, you can tailor your Sierra 2500HD to perfectly suit your work and lifestyle demands.


Interior Features
Step inside the Sierra 2500HD's well-crafted interior and discover a host of features designed for your comfort and convenience. Available features include carpeted floors, cloth or leather upholstery, and dual-zone automatic climate control. Available comforts include heated and ventilated front seats and a heated steering wheel.
Technology & Safety
A seven-inch touchscreen comes standard, while a 13.4-inch display is available. Wireless Apple CarPlay® and Android Auto™ come standard for simple smartphone connectivity. You can also equip your Sierra 2500HD with a Bose® premium sound system and Google built-in.
Standard safety tech features include forward collision warning, automatic emergency braking, lane departure warning, automatic high beams, and rear seat reminder. Available safety upgrades include blind-spot warning, rear cross-traffic alert, a surround-view camera, and parking sensors.

Test Drive a New GMC Sierra 2500HD Today
When you're ready to explore the 2025 GMC Sierra 2500HD in person, visit our Finance Center to discuss affordable financing options. We also invite you to bring your vehicle to our Service Center for all your maintenance and repair needs, ensuring your Sierra 2500HD remains in peak condition for years to come.
Don't miss the opportunity to elevate your driving experience with the remarkable 2025 GMC Sierra 2500HD. Visit Dennis Dillon GMC in Boise today and discover why this heavy-duty pickup truck is the perfect blend of capability, comfort, and style. With our commitment to exceptional customer service and our 50-year legacy, you can trust us to guide you through your Sierra 2500HD purchase and ownership journey. Contact us to schedule your test drive today.
How Can We Help?
* Indicates a required field
-
Dennis Dillon GMC
2495 S ORCHARD
BOISE, ID 83705
- Sales: (208) 336-6000