Disclaimer:
New vehicle pricing includes all offers and incentives. Title, tax, registration, document, and other required government fees, and, where applicable, set up and predelivery inspection fees, are not included in vehicle prices and estimated payment amounts shown and must be paid by the purchaser. While great effort is made to ensure the accuracy of the information on this site, errors do occur so please verify information with a customer service rep. This is easily done by calling us at (208) 388-4400 or by visiting us at the dealership.
**With approved credit. Terms may vary. Monthly payments are only estimates derived from the vehicle price with a 72 month term, 5.9% interest and 20% downpayment.
At Dillon Automotive we are so confident in our “Guaranteed Best Pricing” we will beat any price by $500 based on the following guidelines:
– Vehicles must have the same MSRP.©2026. Dillon Automotive FIAT. All Rights Reserved.
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Customer may not qualify for ALL Rebates shown. Some rebates are stackable and others can and cannot be combined. See Dealer For Complete Details.
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This 2021 GMC Sierra 3500HD Denali in striking Cayenne Red Tintcoat is built for serious work and luxury living. Powered by a Duramax 6.6L V8 Turbodiesel engine paired with a 10-speed automatic transmission, this crew cab delivers the capability and refinement you demand. The jet black leather interior and Denali Ultimate Package elevate every drive with premium comfort and technology.
- Duramax 6.6L V8 Turbodiesel with 10-speed automatic
- 4WD with 2-speed active transfer case and off-road suspension
- Gooseneck/5th wheel prep package with integrated trailer brake controller
- Denali Ultimate Package with premium features and styling
- Heated and ventilated leather front seats with 10-way power adjustment
- Premium GMC infotainment system with navigation and wireless CarPlay/Android Auto
- Multicolor 15'' head-up display and surround vision camera system
- Signature Denali grille with LED cargo lighting
- Engine block heater and 220-amp alternator for reliability
- Remote keyless entry with remote vehicle starter
This capable Sierra 3500HD is ready for the road whether you're towing heavy loads or enjoying weekend adventures. With its combination of diesel power, advanced technology, and premium appointments, this is the truck for those who refuse to compromise. Visit us today to experience the commanding presence and refined interior of the Sierra 3500HD Denali.
Family owned and operated for over 50 years!