Heated Leather Seats, Navigation, Chrome Wheels, Onboard Communications System, CD Player, Back-Up Camera, 4x4, Turbo Charged, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE, DURAMAX PLUS PACKAGE, Trailer Hitch CLICK ME!
KEY FEATURES INCLUDE
Leather Seats, 4x4, Heated Driver Seat, Back-Up Camera, CD Player, Onboard Communications System, Trailer Hitch, Chrome Wheels, Remote Engine Start, Dual Zone A/C, WiFi Hotspot, Heated Seats, Heated Leather Seats. Keyless Entry, Privacy Glass, Steering Wheel Controls, Alarm, Electronic Stability Control.
OPTION PACKAGES
DURAMAX PLUS PACKAGE includes (L5P) Duramax 6.6L Turbo-Diesel V8 engine, (DQS) outside memory equipped heated power-adjustable vertical trailering mirrors, (MW7) Allison 1000 6-speed automatic transmission, (UQA) Bose premium audio system, (UD5) front and rear park assist and (IO6) 8 diagonal Color Touch Screen Navigation with GMC Infotainment, AUDIO SYSTEM, 8 DIAGONAL COLOR TOUCH SCREEN NAVIGATION WITH GMC INFOTAINMENT SYSTEM, AM/FM/SIRIUSXM, HD RADIO with USB ports, auxiliary jack, Bluetooth® streaming audio for music and most phones, Pandora Internet radio and voice-activated technology for radio and phone, MIRRORS, CHROME, OUTSIDE HEATED POWER-ADJUSTABLE VERTICAL TRAILERING, MEMORY-EQUIPPED, UPPER GLASS, POWER-FOLDING AND MANUAL EXTENDING; Includes integrated turn signal indicators, consisting of 51 square inch flat mirror surface positioned over a 24.5 square inch convex mirror surface with a common head and lower convex spotter glass (convex glass is not heated and not power-adjustable) and addition of auxiliary cargo lamp for backing up (helps to see trailer when backing up with a trailer) and amber auxiliary clearance lamp, ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE (445 hp [332 kW] @ 2800 rpm, 910 lb-ft of torque [1220 Nm] @ 1600 rpm) Includes capped fuel fill, (K40) exhaust brake, and (K05) engine block heater. TRANSMISSION, ALLISON 1000 6-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive, electronic engine grade braking and tow/haul mode. GMC SLT with Summit White exterior and Jet Black interior features a 8 Cylinder Engine with 445 HP at 2800 RPM*.
EXPERTS ARE SAYING
KBB.coms review says What do you call a heavy-duty pickup that can pull, haul and work like theres no tomorrow, yet offers its passengers a level of comfort and refinement on par with some luxury SUVs? You call it the 2018 GMC Sierra 2500 or 3500 HD..
OUR OFFERINGS
At Big Country Auto of Madison County it is our mission to courteously, energetically, and diligently work to provide you, our customer, the best and most reliable transportation. At Big Country Auto of Madison County it is our challenge to serve you and our communities better than anyone in the industry. YOU, the customer, are our past present and future. NEVER be afraid to ask how we can serve you better today. This is our PROMISE to you.
Pricing analysis performed on 10/10/2025. Horsepower calculations based on trim engine configuration. Please confirm the accuracy of the included equipment by calling us prior to purchase.
Used 2018 GMCSierra 2500HD SLT
- Exterior Color
- Summit White
- Interior Color
- Jet Black
- Odometer
- 77,832 miles
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT12TEY9JF283432
- Stock Number
- A3201A
GMC
Sierra 2500HD
Highlighted Features
- Navigation system
- Leather upholstery
- Automatic temperature control
- Premium audio system
- Wireless phone connectivity
- Chrome wheels
- Parking sensors
- Exterior parking camera rear
- Front dual zone A/C
- Auto-dimming rearview mirror
- High intensity discharge headlights
- Split folding rear seat
Included Packages & Accessories
- Chrome Power-Adjustable Heated Outside Mirrors
- Radio: AM/FM/SiriusXM/HD w/Navigation
- Bluetooth For Phone
- Engine: Duramax 6.6L Turbo-Diesel V8
- Exhaust Brake
- Dual Heavy-Duty 70 Amp Battery
- Engine Block Heater
- Capped Fuel Fill
- Transmission: Allison 1000 6-Speed Automatic w/OD
- Duramax Plus Package
- Bose 6 Speaker Sound System
- Ultrasonic Front & Rear Park Assist
Included Packages & Options
- Duramax Plus Package$11,080
- Engine: Duramax 6.6L Turbo-Diesel V8
- Chrome Power-Adjustable Heated Outside Mirrors
- Transmission: Allison 1000 6-Speed Automatic w/OD
- Bose 6 Speaker Sound System
- Ultrasonic Front & Rear Park Assist
- Radio: AM/FM/SiriusXM/HD w/Navigation
- Radio: AM/FM/SiriusXM/HD w/Navigation$495
- Bluetooth For Phone
Detailed Specifications
- 1-touch down
- 1-touch up
- Adjustable pedals
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Illuminated entry
- Memory seat
- Navigation system
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob and smart device
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Chrome wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Single rear wheels
- Speed-sensing steering
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM
- CD player
- CD-MP3 decoder
- Premium audio system: GMC Infotainment System
- Primary LCD size: 8.0"
- Speaker type: Bose
- Speakers: 6
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Heated front seats
- Leather upholstery
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Split folding rear seat
- Block heater
- Compressor: intercooled turbo
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Horsepower: 445hp @ 2,800RPM
- Limited slip differential: mechanical
- Manual-shift auto
- Mode select transmission
- Number of valves: 32
- Rear locking differential
- Sequential multi-point fuel injection
- Torque: 910 lb.-ft. @ 1,600RPM
- Transmission: 6 speed automatic
- Variable valve control
- Ground clearance (min): 245mm (9.7")
- Auto-dimming door mirrors
- Bodyside moldings
- Door mirrors: chrome
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Trailer hitch receiver
- Trailer sway control
- Turn signal indicator mirrors
- Compression ratio: 16.00 to 1
- Curb weight: 3,385kg (7,462lbs)
- Engine bore x stroke: 103.0mm x 99.0mm (4.06" x 3.90")
- Engine displacement: 6.6 L
- Engine horsepower: 445hp @ 2,800RPM
- Engine torque: 910 lb.-ft. @ 1,600RPM
- Exterior body width: 2,045mm (80.5")
- Exterior height: 1,987mm (78.2")
- Exterior length: 6,083mm (239.5")
- Front headroom: 1,087mm (42.8")
- Front hiproom: 1,543mm (60.7")
- Front legroom: 1,150mm (45.3")
- Front shoulder room: 1,647mm (64.8")
- Payload: 1,140kg (2,513lbs)
- Rear headroom: 1,029mm (40.5")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,040mm (40.9")
- Rear shoulder room: 1,634mm (64.3")
- Towing capacity: 5,897kg (13,000lbs)
- Turning radius: 7.8m (25.8')
- Wheelbase: 3,904mm (153.7")
- Compass
- Delay-off headlights
- Display: analog
- Exterior parking camera rear
- Front fog lights
- Front reading lights
- Fully automatic headlights
- High intensity discharge headlights
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: front and rear
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
Standard Features
- Engine: Duramax 6.6L Turbo-Diesel V8
- Chrome Power-Adjustable Heated Outside Mirrors
- Transmission: Allison 1000 6-Speed Automatic w/OD
- Bose 6 Speaker Sound System
- Ultrasonic Front & Rear Park Assist
- Radio: AM/FM/SiriusXM/HD w/Navigation
- Bluetooth For Phone
- Exhaust Brake
- Dual Heavy-Duty 70 Amp Battery
- Engine Block Heater
- Capped Fuel Fill
Dealer Notes
KBB.com Consumer Reviews

Overall4.6Out of 5
- 5.0
Best HD Truck Ever !
By BZ | on Thursday, April 09, 2020
After owning a 1500 Sierra and stepping up to a 2500 HD Diesel there is a night and day difference when towing, highway MPG is surprisingly good for a 8000lb vehicle, average between 20-24 depending on conditions. Towing mpg is much better than gas V8. No strain at all on vehicle when towing. Truck has been 100% reliable so far @ 19K with zero issues. Allison transmission is the best I ever used, nothing else compares to this transmission !… - 5.0
This truck is awesome
By Army Vet | on Sunday, May 26, 2019
I love my GMC. It is reliable, well built, comfortable (my wife loves to road trip in our GMC) and gets excellent mileage (20-24 MPG on the hi-way). The truck drives well and is very solid feeling. The Duramax/Allison duo is unmatched in my opinion.… - 4.0
Great
By Ram | on Thursday, July 01, 2021
Kelley blue book is great. I recommend it to everyone. It gave me that answer I wanted. And now I feel comfortable.…
Based on 32 consumer ratings for 2015–2019 models. | Privacy
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