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Classic Buick GMC Katy · Houston, TX

2020 GMC Sierra 2500 HD Denali

46,243 miles · truck · Price dropped $345

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2020
MakeGMC
ModelSierra 2500 HD
TrimDenali
Stock numberTLF324387
Mileage46,243 miles
BodyPickup
Engine6.6L V8 turbo
Cylinders8
Displacement6.6L
TransmissionAutomatic
Drivetrain4WD
FuelDiesel
ExteriorBlack
InteriorBlack
Doors4

Vehicle description

No-Haggle, Transparent Pricing: We are a One-Price dealership—the price you see online is our absolute best price, with zero negotiation. Buy with confidence! This 2020 GMC Sierra 2500HD Denali in striking Onyx Black delivers serious capability paired with premium refinement. The legendary Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission combine for commanding power and towing performance, while the 4WD drivetrain ensures confidence on any terrain. With just over 46,000 miles, this Denali is well-maintained and ready for work or weekend adventures. Key Features: - Duramax 6.6L V8 Turbodiesel Engine - 4WD with 2-Speed Active Transfer Case - X31 Off-Road Package - Lane Departure Warning & Automatic Emergency Braking - Navigation System with Premium GMC Infotainment - Heated & Ventilated Front Bucket Seats with Memory Functions - Integrated Trailer Brake Controller & Hitch Guidance - Hill Descent Control - Apple CarPlay/Android Auto Integration - 20 Multi-Dimensional Polished Aluminum Wheels The luxurious leather interior features heated and ventilated front seats with power adjusters, along with a heated steering wheel and premium Bose audio system. Advanced safety technologies including lane change alert, rear cross traffic alert, and forward collision alert provide peace of mind on every journey. Driver Alert Packages I and II combine with hill descent control and off-road suspension to handle demanding conditions with precision. Schedule your visit today to experience the power, comfort, and advanced features of this exceptional Sierra 2500HD Denali.

Features & options (104)

  • Heated Steering Wheel
  • 4WD/AWD
  • Aux Input
  • Heated Seats
  • Keyless Entry
  • Keyless Ignition System
  • Leather Seats
  • Wi-Fi Hotspot
  • Emergency Brake Assist
  • Lane Departure Warning
  • Blind Spot Monitor
  • Forward Collision Warning
  • Navigation System
  • Rear View Camera
  • Satellite Radio
  • Tow Hitch/Tow Package
  • Entertainment System
  • Turbo Charged Engine
  • Cruise Control
  • Rear head restraint control : 2 rear seat head restraints
  • Seating capacity : 5
  • Console insert material : Aluminum and genuine wood console insert
  • Door panel insert : Aluminum and genuine wood door panel insert
  • Panel insert : Aluminum instrument panel insert
  • Individual driver and front passenger seats provide generous room and comfort.
  • This enhances cab appearance and adds sound and weather insulation.
  • Rear seatback upholstery : Carpet rear seatback upholstery
  • Interior accents : Chrome interior accents
  • Headliner material : Cloth headliner material
  • Rear seats fixed or removable : Fixed rear seats
  • Carpet flooring enhances the interior appearance and provides an added layer of sound insulation.
  • Full coverage flooring enhances the interior appearance and provides an added layer of sound insulation.
  • Headliner coverage : Full headliner coverage
  • Your driving glove. A leather wrapped steering wheel brings the touch of luxury to your drive.
  • Front head restraint control : Manual front seat head restraint control
  • Rear head restraint control : Manual rear seat head restraint control
  • Front seatback upholstery : Plastic front seatback upholstery
  • This feature provides increased comfort for rear seat passengers.
  • A centre armrest contributes to a more comfortable driving environment.
  • Gearshifter material : Urethane gear shifter material
  • This provides an attractive, finished appearance.
  • Exterior 120V AC power outlet : 1 exterior 120V AC power outlet
  • Number of beverage holders : 8 beverage holders
  • Boxside steps : BedStep integrated side steps
  • Passenger doors rear left : Conventional left rear passenger door
  • Passenger doors rear right : Conventional right rear passenger door
  • DEF fluid gauge : Diesel exhaust fluid (def) gauge
  • Clock : Digital clock
  • This feature helps to keep the driver informed about the status of systems on the vehicle.
  • The addition of a visor mirror increases the functionality of the visor.
  • Beverage holders prevent spills and free the driver's hands, which increases safe operation of the vehicle.
  • Rear seat direction : Front facing rear seat
  • Integrated tailgate step
  • Rear cargo door : MultiPro Tailgate tailgate
  • Oil pressure gauge
  • Oil pressure warning
  • This makes it easier to read in low light conditions.
  • This feature helps to remove frost/ice/snow for increased visibility.
  • Speedometer : Redundant digital speedometer
  • Tachometer
  • A trip odometer is useful for keeping track of distance traveled during a trip or between fill-ups.
  • The variable intermittent setting allows the wipers to be adjusted based on the amount of moisture the vehicle is driving through.
  • Voltmeter
  • Number of doors : 4 doors
  • Fenders : Black fender flares
  • Bumpers front : Body-coloured front bumper
  • Bumpers rear : Body-coloured rear bumper
  • Door handle material : Chrome door handles
  • Door mirror style : Chrome door mirrors
  • Bumper rub strip front : Chrome front bumper rub strip
  • Grille style : Chrome grille
  • In-box lighting : LED in-box lighting
  • Special paint : Monotone paint
  • Window Trim : Stainless steel side window trim
  • Vehicle to trailer hitching assist
  • Wheel covers : Wheel hub covers
  • This helps reduce exhaust pollutants.
  • Satellite trial : 3 month satellite trial subscription
  • Speakers number : 7 speakers
  • Primary display size : 8 inch primary display
  • Radio : AM/FM/digital/SiriusXM with 360Lsatellite
  • This stereo system offers noticeably improved fidelity and listening satisfaction compared to a non-amplified audio system.
  • Antenna : Fixed audio antenna
  • Seek scan
  • Displacement liters : 6.6 L
  • The alternator maintains the battery charge and supplies electrical power for the ignition system and accessory equipment.
  • Aluminium construction is lightweight, providing weight savings that contribute to better handling and fuel economy.
  • PTO control type : Fast idle switch PTO controls
  • Powertrain type : ICE
  • PTO control provision location : Interior PTO control provision
  • Iron construction provides strength and durability.
  • A monobeam axle provides rigidity and strength. It is used by most trucks and large SUVs because it can support heavy loads.
  • Two-Speed Transfer Case
  • Seatbelt pretensioners number : 2 seatbelt pre-tensioners
  • They help define the height of the vehicle in the dark.
  • This safety feature is more easily visible to following drivers and helps them react quicker to a slowing or stopped vehicle.
  • This headlamp layout provides improved lighting due to the dedicated task assigned to each bulb.
  • The additional chest coverage provides upper body support during a collision.
  • DriveType: Four Wheel Drive
  • Fuel System: Direct Injection
  • Fuel Tank Capacity: 136 liters
  • Fuel Type: Diesel Fuel
  • Horse Power: 445
  • Rear Wheel: Single

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 50 miles of Houston, Texas
Asking price$54,351Dealer asking price · 46,243 mi
Market value$39,995Market value · based on 3 comparable cars
vs. market High price+35.9%High price · based on 3 comparable cars

Where this price sits

In the typical middle range · 33% of 3 similar listings ask more than this car.

$31,222lowest$55,536highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+35.9%
−25%Market value+25%
High price$14,356 above the market value of $39,995

Price range

$54,351
$31,222$55,536
3rd lowest price of 4 similar listings within 50 milesTick marks the market value · range of 3 similar listings

AutosXchange Insights

  • Compared with 3 used 2019 GMC Sierra 2500 Denali listings within 50 mi.
  • Priced $14,356 above the market value of 3 comparable cars — compare options, condition and history.
  • 3rd lowest price of 4 similar listings within 50 miles.
  • Has about 90,000 fewer miles than similar listings.
  • About 6,606 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # TLF324387 — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 9, 2026. 1 price change at this dealership: $54,696 → $54,351 (−$345).

$54.0k$54.2k$54.4k$54.6k$54.8k$55.0kNov 9Nov 10Nov 11Nov 13Nov 14−$345 Nov 11

AutosXchange Intel Hub: Price changes for this model in Texas · This model in the Intel Hub · Market movers in Texas

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 14); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2019 Sierra 2500 Denali · used · any miles · within 50 miles of Houston, Texas. All 3 comparable cars for sale, nearest first.

More GMC Sierra 2500 near Houston

All years and trims. Nearest first.