Used 2026 GMC Sierra HD for sale in Castle Rock
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Vehicle Details
Unknown
Unknown
4WD
Diesel
V-Shaped
Unknown
Pickup
Owners
What was with this car history VIN 1GT4UXEYXTF311711?
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Seller description
The 2026 GMC Sierra 2500HD Denali Ultimate commands attention with its bold, muscular presence. Powered by a Duramax 6.6L V8 Turbodiesel engine paired with a 10-speed automatic transmission, this 4WD heavy-duty pickup delivers exceptional capability and performance. - Technology Package - X31 Off-Road Package - Off-Road Suspension - Inside Rearview Auto-Dimming Rear Camera Mirror - Multicolor 15 Diagonal Head-Up Display - Hill Descent Control Elevating the driving experience, this Sierra 2500HD Denali Ultimate pampers you with premium features, including the Bose Premium Series 12-Speaker System, 120-Volt Bed Mounted Power Outlet, Heads-Up Display, and Remote Vehicle Starter System. Thoughtful details like the Spray-on Pickup Bedliner with GMC Logo and Trailer Cam Provisions ensure both style and utility. Engineered for the demands of the road and the trail, the Denali Ultimate delivers uncompromising capability. The 2-Speed Active Transfer Case, 220-Amp Alternator, and Dual Heavy-Duty 70 Amp Battery provide the power and control you need, while features like the Lane Departure Warning System and Automatic Emergency Braking prioritize your safety. Indulge in unparalleled comfort and refinement with the Denali Ultimate's 16-Way Power Driver and Passenger Seats, Heated and Ventilated Front Seats, and Heated Rear Outboard Seats. The premium leather upholstery and genuine wood accents elevate the cabin's luxurious ambiance. Exceptional capability, advanced technology, and uncompromising comfort a the 2026 GMC Sierra 2500HD Denali Ultimate is the ultimate expression of power and refinement. Experience it for yourself today. Price includes: $500 - GM Military Cash Allowance Program. Exp. 01/04/2027 $903 Fuel Credit for Full Size Vehicle. See Dealer For Full Details. Expires 8/1/26.
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Frequently Asked Questions About the 2026 GMC Sierra HD
The average price of a used 2026 GMC Sierra HD is $69,222 based on 23,000 listings currently available nationwide. Prices range from $10,000 to $111,945 depending on mileage, condition, and location. This particular Sierra HD in Castle Rock, CO is listed at $91,811.
Used 2026 GMC Sierra HD vehicles on our marketplace have an average of 14,593 miles. You can compare mileage across all available units on the GMC Sierra HD listings page.
Reliability varies by model year, maintenance history, and driving conditions. We recommend checking the vehicle history report and having an independent inspection before purchase.
The 2026 GMC Sierra HD runs on Diesel. Exact fuel economy figures vary by trim level and driving conditions. Check fueleconomy.gov for EPA estimates specific to this model year.
There are 769,898 used Pickup vehicles priced under $100,000 currently listed on our marketplace. Browse all options on the Used Pickup under $100,000 page. You can also narrow your search to Used GMC vehicles under $100,000 if you prefer to stay with the GMC brand.
