Used 2021 GMCSierra 2500 HD Denali
- Diesel
- Exterior Color
- Summit White
- Interior Color
- JET BLACK, FORGE PERFORATED LEATHER SEAT TRIM
- Odometer
- 127,764 miles
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- Engine: 6.6L V8 DuraMax Diesel, Turbo
- VIN
- 1GT49REY0MF319086
- Stock Number
- 3T0402A
GMC
Sierra 2500 HD
Included Packages & Accessories
Detailed Specifications
- Max seating capacity: 5
- Fuel System: Direct Injection
- Fuel tank capacity: 36 gal
- Horsepower: 445
Dealer Notes
2021 GMC Sierra 2500HD Denali Summit White Clean CARFAX. CARFAX One-Owner.Welcome to Dennis Dillon GMC, your trusted destination for a no-hassle, no-haggle car buying experience. At our dealership, we pride ourselves on offering the best upfront prices no surprises, just exceptional value. From the moment you walk through our doors, youâll receive our lowest, most competitive price without the need for negotiation. Weâre committed to providing a straightforward, stress-free experience, so you can drive away feeling confident and satisfied with your purchase!10-Speed Automatic, 4WD, Jet Black Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 USB Ports, 2 USB Ports (1st Row), 2-Speed Active Transfer Case, 220 Amps Alternator, 2nd Row Dual USB Charge-Only Ports, 3.42 Axle Ratio, 3.73 Rear Axle Ratio, 4-Wheel Disc Brakes, 4G LTE Wi-Fi Hotspot Capable, 6 Rectangular Chromed Tubular Assist Steps, 7 Speakers, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Bed View Camera w/2 Trailer Camera Provisions, Bose Premium 7 Speaker Sound System, Brake assist, Bumpers: body-color, Chrome Recovery Hooks, Compass, Compass Located In Instrument Cluster, Deep-Tinted Glass, Delay-off headlights, Driver Alert Package I, Driver Alert Package II, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Electronic Stability Control, Engine Block Heater, Exhaust Brake, Exterior Parking Camera Rear, Floor-Mounted Center Console, Following Distance Indicator, Forge Perforated Leather-Appointed Front Seat Trim, Forward Collision Alert, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Garage door transmitter, Genuine wood console insert, Genuine wood door panel insert, GMC Connected Access Capable, HD Radio, HD Surround Vision, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated door mirrors, Heated Driver & Front Outboard Passenger Seats, Heated front seats, Heated rear seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hill Descent Control, Hitch Guidance w/Hitch View, Illuminated entry, In-Vehicle Trailering System App, Integrated Trailer Brake Controller, IntelliBeam Automatic High Beam On/Off, Keyless Open & Start, Lane Change Alert w/Side Blind Zone Alert, Lane Departure Warning System, LED Cargo Area Lighting, LED Smoked Amber Roof Marker Lamps, Low tire pressure warning, Manual Tilt-Wheel/Telescoping Steering Column, Memory seat, Navigation System, Occupant sensing airbag, Off-Road Suspension, OnStar & GMC Connected Services Capable, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Pickup Box, Polished Exhaust Tip, Power Door Locks, Power door mirrors, Power driver seat, Power Front Passenger Windows w/Express Up/Down, Power passenger seat, Power Rear Windows w/Express Down, Power Sliding Rear Window w/Defogger, Power steering, Power Sunroof, Power windows, Power Windows w/Driver Express Up/Down, Preferred Equipment Group 5SA, Premium audio system: Premium GMC Infotainment System, Radio: Premium GMC Infotainment Sys w/Navigation, Rear Cross Traffic Alert, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear Wheelhouse Liners, Rear window defroster, Remote keyless entry, Remote Vehicle Starter System, Safety Alert Seat, Security system, Signature Denali Gri
KBB.com Consumer Reviews

Overall3.8Out of 5
- 2.0
Transmission trash
By Jason | on Monday, April 07, 2025
Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk… - 3.0
Infotainment system unreliable!
By Brian C | on Friday, June 27, 2025
The servicing dealer has been great, the GM engineers not so much! The truck will without warning have no sound for the radio and the blinkers. GM told the dealership to reprogram then when that didn't work they said replace the amplifier and when that didn't work, they said replace a module, and when that didn't work they said to replace the amplifier again, and when that didn't work they said we know it's a known problem but we don't know how to fix it. All of this with less than 9k miles. The dealer has done everything that GM has asked them to do, but none of it works. It's very frustrating to pay this much for a truck and you can't get the radio to stay working. It also got away from the factory with paint damage and a dent in the hood,( the dent is from the inside out on a double wall). I thought I was upgrading when I went from a F250 Lariat to a Denali, but I may have traded one headache for another.… - 5.0
Fantastic truck
By Jjj | on Sunday, November 07, 2021
This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck!…
Based on 13 consumer ratings for 2020–2026 models. | Privacy
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.
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**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.
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• 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.
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• 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.
- Your Price
- $49,799
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