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GMC ✕ Sierra 2500HD ✕
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Used GMC Sierra 2500HD Inventory

7 Vehicles Found
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Used 2015 GMC Sierra 2500HD Denali
Used 2015 GMC Sierra 2500HD Denali

Used 2015 GMC Sierra 2500HD Denali
Stock #: 3T0800A
VIN: 1GT120EG5FF192171
Mileage: 184608
Engine: Vortec 6.0L V8 SFI Flex Fuel VVT
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$26,599
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Dealer Comments

This powerful and capable 2015 GMC Sierra 2500HD Denali is the perfect choice for those seeking a rugged and well-equipped heavy-duty pickup. With its impressive Vortec 6.0L V8 engine and 4-wheel drive capabilities, this Sierra is ready to take on any task with confidence.- DENNIS DILLON DEAL- SUNROOF, POWER- MIRRORS, OUTSIDE HEATED POWER-ADJUSTABLE VERTICAL CAMPER, MANUAL-FOLDING AND EXTENDING, BLACK- WHEELS, 20'' (50.8 CM) FORGED POLISHED ALUMINUM- TIRES, LT265/60R20E ALL-TERRAIN, BLACKWALL- TRAILERING WIRING PROVISIONS, FOR CAMPER, FIFTH WHEEL AND GOOSENECK TRAILER- SUSPENSION PACKAGE, OFF-ROADThis Denali trim level elevates the Sierra with a host of premium features, including a Bose sound system, heated and ventilated front seats, a heated steering wheel, and a power sunroof. The spacious and well-appointed cabin offers ample room for passengers and cargo, while the robust off-road suspension and trailering capabilities make this Sierra a true workhorse.Whether you're hauling heavy loads, towing a trailer, or simply enjoying the open road, this 2015 GMC Sierra 2500HD Denali is ready to deliver the power, capability, and comfort you demand. Experience the difference for yourself and visit our dealership today.Family owned and operated for over 50 years!

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Used 2013 GMC Sierra 2500HD Denali
Used 2013 GMC Sierra 2500HD Denali

Used 2013 GMC Sierra 2500HD Denali
Stock #: 3T0563A
VIN: 1GT125E84DF113463
Mileage: 153189
Engine: Duramax 6.6L V8 Turbodiesel
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$29,499
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Elevate your driving experience with this exceptional 2013 GMC Sierra 2500HD Denali. Meticulously maintained and boasting a wealth of premium features, this powerful truck is ready to tackle any task with uncompromising capability.- DENNIS DILLON DEAL- SUNROOF, POWER with express-open, retracts into roof- MIRRORS, OUTSIDE HEATED POWER-ADJUSTABLE VERTICAL CAMPER MANUAL-FOLDING AND EXTENSION, BLACK- ENGINE BLOCK HEATER- 6.6L V8 Diesel Turbocharged Duramax; B20-DIESEL COMPATIBLE- 6-Speed Automatic Allison; 1000; ELECTRONICALLY CONTROLLED- WHEELS, 20'' (50.8 CM) FORGED POLISHED ALUMINUM- AUDIO SYSTEM WITH NAVIGATION, AM/FM/SIRIUSXM STEREO WITH CD PLAYERThis Sierra 2500HD Denali delivers exceptional performance with its robust Duramax 6.6L V8 Turbodiesel engine and Allison 1000 6-speed automatic transmission. Enjoy the convenience of 4-wheel drive, along with a host of premium amenities that elevate your driving experience, including a power sunroof, heated and power-adjustable mirrors, and a state-of-the-art navigation system.Inside, the Denali's luxurious cabin features perforated Nuance leather-appointed seating, heated and ventilated front seats, and a heated steering wheel for unparalleled comfort. The 12-way power-adjustable driver and front passenger seats with memory settings ensure a personalized fit, while the Bose premium audio system provides an immersive listening experience.With a mileage of 153,189, this well-maintained Sierra 2500HD Denali is ready to take on your toughest jobs and adventures. Discover the perfect blend of power, capability, and refinement in this exceptional truck.Schedule a test drive today and experience the difference for yourself. We're confident you'll be impressed by the Sierra 2500HD Denali's exceptional performance and premium features.Family owned and operated for over 50 years!

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Used 2018 GMC Sierra 2500HD SLE
Used 2018 GMC Sierra 2500HD SLE

Used 2018 GMC Sierra 2500HD SLE
Stock #: 3T0644A
VIN: 1GT12SEY4JF241020
Mileage: 129587
Engine: Duramax 6.6L V8 Turbodiesel
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$38,999
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Dealer Comments

Experience the power and capability of the 2018 GMC Sierra 2500HD SLE. This rugged pickup is built to handle any job with its Duramax 6.6L V8 Turbodiesel engine and Allison 1000 6-speed automatic transmission. Equipped with 4WD, this Sierra 2500HD is ready to take on any terrain.- DENNIS DILLON DEAL- MIRRORS, OUTSIDE HEATED POWER-ADJUSTABLE VERTICAL CAMPER UPPER GLASS, MANUAL-FOLDING AND EXTENDING, BLACK- Red Quartz Tintcoat exterior- Engine block heaterThe SLE Preferred Package adds premium features like a 10-way power driver's seat, remote vehicle starter, front fog lamps, and a 110-volt power outlet. The Protection Package includes all-weather floor liners and splash guards to keep your Sierra looking its best.Ride with confidence on the 18'' chromed aluminum wheels wrapped in all-terrain tires. The Off-Road Suspension Package provides the capability you need, with features like hill descent control and an underbody shield.Inside, you'll enjoy the convenience of the GMC Infotainment System with SiriusXM radio, Bluetooth connectivity, and a 110-volt power outlet. Stay comfortable with dual-zone automatic climate control and an auto-dimming rearview mirror.This 2018 GMC Sierra 2500HD SLE is built to handle any job or adventure. Experience the power and capability for yourself - visit us today!Family owned and operated for over 50 years!

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Used 2023 GMC Sierra 2500HD Denali
Used 2023 GMC Sierra 2500HD Denali

Used 2023 GMC Sierra 2500HD Denali
Stock #: 3S0669A
VIN: 1GT49REY5PF200521
Mileage: 75466
Engine: Duramax 6.6L V8 Turbodiesel
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$54,899
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Dealer Comments

Experience the unparalleled power and capability of the 2023 GMC Sierra 2500HD Denali. This exceptional heavy-duty pickup is engineered to conquer any challenge with its robust Duramax 6.6L V8 Turbodiesel engine, delivering an impressive 910 lb-ft of torque and 445 horsepower.- White Frost Tricoat exterior- Engine block heater- 220-amp alternator- Denali Ultimate Package with technology and sunroofThe Sierra 2500HD Denali is packed with premium features that elevate your driving experience:- Bose premium 7-speaker audio system- Heated and ventilated front seats- Heated rear seats- Multicolor 15-inch head-up display- Wireless charging- Surround-view camera system with trailer viewsTowing and hauling capabilities are enhanced with the available Trailer Tire Pressure Monitor Sensors and In-Vehicle Trailering System App. Tackle any job with confidence in this capable and well-appointed Denali.Experience the unmatched power, technology, and luxury of the 2023 GMC Sierra 2500HD Denali. Schedule your test drive today and discover how this exceptional heavy-duty pickup can transform your driving experience.Family owned and operated for over 50 years!

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Used 2025 GMC Sierra 2500HD Pro
Used 2025 GMC Sierra 2500HD Pro

Used 2025 GMC Sierra 2500HD Pro
Stock #: G1695P
VIN: 1GT3ULEY9SF282138
Mileage: 410
Engine: Duramax 6.6L V8 Turbodiesel
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$56,899
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Introducing the impressive 2025 GMC Sierra 2500HD Pro - a true workhorse built to conquer any task with confidence. This powerful truck boasts a commanding presence and is packed with an array of premium features to elevate your driving experience.- DENNIS DILLON DEAL- ENGINE BLOCK HEATER- POWER OUTLET, INSTRUMENT PANEL, 120-VOLT- ALTERNATOR, 220 AMP- 6.6L V8 Diesel Turbocharged (Duramax) (B20-Diesel Compatible)- CONVENIENCE PACKAGE- 1SA PRO SAFETY PLUS PACKAGE- WHEELS, 17'' (43.2 CM) MACHINED ALUMINUM- TIRES, LT265/70R17E ALL-TERRAIN, BLACKWALL- LAMPS, SMOKED AMBER ROOF MARKER, (LED)- GOOSENECK / 5TH WHEEL PREP PACKAGEMeticulously engineered to handle the toughest jobs, this Sierra 2500HD Pro delivers uncompromising capability. The powerful Duramax 6.6L V8 Turbodiesel engine, paired with a 10-speed automatic transmission and 4WD, provides the muscle you need to conquer any terrain. With 410 miles on the odometer, this truck is ready to take on your next adventure.Designed with your comfort and convenience in mind, the Sierra 2500HD Pro is equipped with a host of premium features. The Convenience Package includes the EZ Lift power lock and release tailgate, tinted glass, LED cargo bed lighting, and a rear-window defogger, making your life easier. The 1SA Pro Safety Plus Package enhances your driving confidence with features like Front and Rear Park Assist, Rear Cross Traffic Alert, and Lane Change Alert with Side Blind Zone Alert.Step inside the spacious cabin and experience the perfect blend of utility and refinement. The durable vinyl seat trim and 4-way manual driver and passenger seats provide the comfort you need for long hauls. Stay connected with the GMC Infotainment System, featuring AM/FM radio and smartphone integration via Apple CarPlay and Android Auto.This 2025 GMC Sierra 2500HD Pro is a true workhorse built to conquer any challenge. With its impressive capabilities, premium features, and unwavering reliability, it's the perfect companion for your toughest jobs. Visit us today to experience the power and versatility of this remarkable truck.Family owned and operated for over 50 years!

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Used 2020 GMC Sierra 2500HD AT4
Used 2020 GMC Sierra 2500HD AT4

Used 2020 GMC Sierra 2500HD AT4
Stock #: BB2005
VIN: 1GT49PEY1LF316944
Mileage: 37543
Engine: Duramax 6.6L V8 Turbodiesel
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$59,999
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Dealer Comments

Discover the ultimate heavy-duty truck experience with the 2020 GMC Sierra 2500HD AT4. This powerful and capable off-road-focused model is ready to take on any challenge.- Custom Features:- DENNIS DILLON DEAL- SUNROOF, POWER- TECHNOLOGY PACKAGE- Pacific Blue Metallic- ENGINE BLOCK HEATER- ALTERNATOR, 220 AMPS- 6.6L V8 Diesel Turbocharged (Duramax)- AT4 PREMIUM PACKAGE- DRIVER ALERT PACKAGE II- TRAILER TIRE PRESSURE MONITOR SENSORSThe Sierra 2500HD AT4 is engineered to conquer the toughest terrain with its Duramax 6.6L V8 Turbodiesel engine, 10-speed automatic transmission, and 4WD system. Experience the ultimate in off-road capability, towing prowess, and premium interior appointments.Indulge in the advanced technology features, including a 15'' diagonal Head-Up Display, 8'' Digital Driver Information Center, Surround Vision, and Rear Camera Mirror. Stay connected with 4G LTE Wi-Fi and Apple CarPlay/Android Auto integration.Enhance your driving experience with the AT4 Premium Package, which adds premium features like 20'' machined aluminum wheels, 6'' Black rectangular assist steps, and a host of advanced safety technologies.Whether you're tackling rugged trails or hauling heavy loads, the 2020 GMC Sierra 2500HD AT4 is the ultimate heavy-duty truck that delivers uncompromising performance, capability, and style.Family owned and operated for over 50 years!

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Used 2025 GMC Sierra 2500HD AT4
Used 2025 GMC Sierra 2500HD AT4

Used 2025 GMC Sierra 2500HD AT4
Stock #: 3T0655A
VIN: 1GT4UPE76SF259452
Mileage: 36120
Engine: 6.6L V8
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No Haggle Price:
$73,949
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Dealer Comments

Experience the ultimate in capability and comfort with the 2025 GMC Sierra 2500HD AT4. This powerful truck is equipped with a robust 6.6L V8 engine and 10-speed automatic transmission, delivering the performance you need for any task.- DENNIS DILLON DEAL- LPO, CARGO TIE-DOWN RINGS, SET OF 4- Onyx Black- Black- ENGINE BLOCK HEATER- AT4 PREMIUM PLUS PACKAGE- TRAILER TIRE PRESSURE MONITOR SENSORS- TRAILERING WIRING PROVISIONS, FOR TRAILERING, 5TH WHEEL AND GOOSENECK TRAILER- LPO, FRONT AND REAR MOLDED SPLASH GUARDS, BLACKStep into the refined and well-appointed interior, featuring premium Bose audio, dual-zone climate control, and a suite of advanced technology. Enjoy the convenience of keyless entry, remote start, and a customizable head-up display.The Sierra 2500HD AT4 is engineered for off-road capability with its high-clearance suspension, skid plates, and electronic locking rear differential. Tow with confidence using the integrated trailer brake controller and trailering camera system.Elevate your driving experience with the 2025 GMC Sierra 2500HD AT4. Schedule a test drive today and discover the uncompromising power and versatility this truck has to offer.Family owned and operated for over 50 years!

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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 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 have the same MSRP.
– Vehicles must be the same year, Make, Model and 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 and any vehicles with over 200 miles do not qualify for this policy.
– Commercial and Government Fleet vehicles do not qualify for this policy.
– Dennis Dillon reserves 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.
– All prices plus Dealer Doc fee of$349.50 and applicable taxes and title fee.
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