New GMC Sierra 2500 HD For Sale in Idaho

Price excludes required taxes, title, license, other governmental fees and includes a $549 dealer documentation service fee.

We have taken reasonable efforts to ensure display of accurate data; however, the information shown may contain errors and omissions, may not reflect all vehicle items and accessories, and errors with regard to pricing may occur.  All displayed inventory is subject to prior sale and all prices expire at midnight on the date displayed.  Price shown is for the state in which Dealer is physically located and if transferred to another state, the price may change.  Dealer is not responsible for any errors but should be consulted in person to confirm the information on this page.

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Call (208) 943-9075 to secure your new GMC Sierra 2500 HD at Dave Smith Motors!

New GMC Sierra 2500 HD for Sale at Dave Smith Motors in Kellogg, Idaho

The new GMC Sierra 2500 HD is a 3/4-ton heavy-duty truck built for serious work without sacrificing GMC's signature premium feel. As the top GM Heavy Duty dealer in the Northwest, Dave Smith Motors stocks hundreds of new Sierra 2500 HD trucks at our Kellogg, Idaho dealership - including hard-to-find Duramax diesel configurations, the AT4X HD off-road flagship, and fully loaded Denali Ultimate HDs. Buyers fly into Kellogg from Anchorage, Salt Lake City, Portland, and Seattle specifically for our HD inventory because finding a properly spec'd Sierra HD locally is rare almost anywhere else. Browse our full new GMC lineup, our Heavy Duty Headquarters, or our complete new vehicle inventory.

New Sierra 2500 HD Trims, Engines, and Heavy Duty Capability

The new Sierra 2500 HD offers two heavy-duty powertrains: the 6.6L EcoTec3 V8 gas engine producing 401 horsepower paired with a 10-speed automatic, or the legendary 6.6L Duramax Turbo-Diesel V8 producing 470 horsepower and 975 lb-ft of torque, paired exclusively with the heavy-duty Allison 10-speed automatic transmission. Maximum trailering reaches up to 22,500 lbs conventional and 26,500 lbs gooseneck when properly equipped, with payload up to 3,900+ lbs. The Sierra 2500 HD includes the class-exclusive MultiPro Tailgate, available Super Cruise on Denali Ultimate HD, and the AT4X HD off-road trim with factory Multimatic spool-valve dampers, locking front and rear differentials, and 35-inch off-road tires.

  • Pro - Job-site work truck with vinyl floors and steel wheels, optimized for fleet use.
  • SLE - Value-driven HD trim with chrome accents and Uconnect-grade infotainment tech.
  • SLT - Mid-luxury HD with leather seating, premium audio, and chrome exterior detailing.
  • AT4 - Off-road-focused HD with raised suspension, all-terrain tires, and skid plates.
  • AT4X - Premium off-road HD flagship with Multimatic spool-valve dampers, locking front and rear differentials, and 35-inch tires.
  • Denali - Luxury HD with quilted leather, real wood trim, and premium audio.
  • Denali Ultimate HD - Ultra-luxury HD flagship with Alpine Umber leather, hand-stitched interior surfaces, full-color heads-up display, and standard Super Cruise.

Need maximum towing or a one-ton dually configuration? Check out the Sierra 3500 HD. Looking for lighter-duty capability? See the Sierra 1500 for daily driving with serious towing chops.

Why Buy Your Sierra 2500 HD at Dave Smith Motors?

Buying a heavy-duty truck is a serious investment. Here's why drivers from Alaska to Florida choose the top GM Heavy Duty dealer in the Northwest for their Sierra 2500 HD:

  • Massive HD Inventory - Over 1,500 new vehicles on the ground, including hundreds of Duramax-equipped Sierra 2500 HD trucks, hard-to-find AT4X HDs, and fully loaded Denali Ultimate HDs local dealers don't stock.
  • Volume Pricing - We sell more new GMC HD trucks than almost anyone, allowing us to post Low-Low-Low prices upfront. No haggling, no games, same price for every customer.
  • Fly & Drive - Fly into Spokane International Airport (GEG), take our free shuttle to our Kellogg, Idaho showroom (about 90 minutes east), and drive your new Sierra 2500 HD home.
  • Commercial & In-House Financing - Our 10 finance specialists work with 50+ lenders to secure approvals for prime, near-prime, and credit-challenged buyers, plus business and commercial financing programs for fleet and Section 179 tax benefits.
  • Transparent Trade-In - Get a Kelley Blue Book (KBB) valuation for your current vehicle online before you arrive, with the full value applied to your new Sierra 2500 HD purchase.

GMC Sierra 2500 HD Shopping FAQs

Where can I find the best prices on a new GMC Sierra 2500 HD near me?

Dave Smith Motors offers the best upfront prices on new GMC Sierra 2500 HD trucks in the country, with fixed Low-Low-Low pricing posted publicly on every Pro, SLE, SLT, AT4, AT4X, Denali, and Denali Ultimate HD in our Kellogg, Idaho inventory. As the top GM Heavy Duty dealer in the Northwest, our HD volume pricing beats local lots by thousands.

Sierra 2500 HD Duramax diesel vs 6.6L gas - which is best?

The 6.6L Duramax Turbo-Diesel V8 is the right choice for buyers who tow heavy regularly - it produces 470 horsepower and 975 lb-ft of torque, with significantly better fuel economy under load and the heavy-duty Allison 10-speed transmission designed for serious work. The 6.6L EcoTec3 V8 gas produces 401 horsepower at a lower upfront cost, with simpler maintenance and traditional gas-engine convenience. Buyers towing fifth-wheel RVs, horse trailers, or commercial loads typically choose Duramax; weekend haulers and AT4X off-roaders often choose the gas V8.

What is the GMC Sierra 2500 HD AT4X?

The Sierra 2500 HD AT4X is GMC's premium off-road heavy-duty truck, built specifically for buyers who need both serious off-road capability and full HD towing and payload. The AT4X includes factory Multimatic DSSV spool-valve dampers, electronic locking front and rear differentials, 35-inch all-terrain tires, factory skid plates, a 2-inch suspension lift, and exclusive AT4X interior styling. It's the closest thing to a serious overlanding heavy-duty rig that comes straight from the GMC factory.

Can I buy a new Sierra 2500 HD if I live out of state?

Yes. Dave Smith Motors sells to buyers in all 50 U.S. states. Fly into Spokane International Airport (GEG), take our complimentary shuttle to Kellogg, and drive your new Sierra 2500 HD home - most paperwork is completed by phone, email, and e-signature before you arrive. If you can't make the trip, we arrange shipping directly to your home or business.


Dave Smith Motors - 210 North Division Street,  Kellogg, Idaho 83837 | (208) 943-9075