New GMC Sierra 2500 for sale in Boise and Nampa, ID

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Vehicle prices below Manufacturer's Suggested Retail Price (MSRP) include factory rebates typically applicable to Customers in the western region and discounts for program qualifying financing. (Customers from most other regions may qualify for the same rebates.) To receive the lowest listed price, Customers must qualify for additional Dealer and Manufacturer programs. Not all Customers will qualify. Prices do not include taxes, license, title, or registration fees, or the $499.00 Dealer Doc fee. Contact us for an explanation of pricing terms and conditions. Prices are subject to inventory availability, Manufacturer program availability, and Dealer program applicability. Inventory is limited and subject to prior sale. Available offers and prices usually change after month-end. We welcome all types of Trade Ins, whether they be vehicles or goods. Nothing that eats though please. We frequently confirm all information is accurate, but errors occur, so please call to confirm pricing and program applicability. Dealer is not responsible for clerical errors. **With approved credit. Terms may vary. Monthly payments are only estimates derived from the vehicle price with a 72 month term, 4.9% interest and 20% downpayment. At Dennis Dillon we are so confident in our "Guaranteed Best Pricing" we will beat any price by $500 based on the following guidelines: • Vehicles must be new and have the same MSRP. • Vehicles must be the same Year, Make, Model, and have the same equipment. • Customer must have a purchase agreement signed and dated by a sales manager from the competing dealer. • Customer information and incentive eligibility must be the same as used in the competing offer. • Deal must be finalized in the same calendar month as the date of the signed purchase agreement from the competing dealer. • Demonstrators, service loaners, commercial and government fleet vehicles, limited production vehicles, special model vehicles (determined at the Dealership's sole discretion), and vehicles with over 200 miles do not qualify for this policy. • Dennis Dillon must have the right to purchase the vehicle from the competing dealer. • This offer applies to the new vehicle price after applicable incentives, and does not include accessories, trade-allowance, or any other item affecting the final sale price. • This offer applies to the vehicle price only, and does not include accessories, protections, dealer doc fee, taxes, registration, or title fees. *Best pricing is offered at the Dealership's sole discretion and is subject to change at any time without prior notice. The Dealership reserves the right to refuse to offer best pricing at any time, to any customer, for any vehicle. Please contact the Dealership if you have questions about our best pricing policy.

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.

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  1. Dennis Dillon GMC

    2495 S ORCHARD
    BOISE, ID 83705

    • Sales: (208) 336-6000
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Get in Touch

  • Contact our Sales Department at: (208) 336-6000
  • Monday9:00 am - 8:00 pm
  • Tuesday9:00 am - 8:00 pm
  • Wednesday9:00 am - 8:00 pm
  • Thursday9:00 am - 8:00 pm
  • Friday9:00 am - 8:00 pm
  • Saturday9:00 am - 7:00 pm
  • Sunday11:00 am - 6:00 pm