Vehicle Details
Power meets purpose in this 2021 GMC Sierra 2500 SLE 4WD â" a rugged, reliable heavy-duty pickup with the stout V8 6.6L Duramax diesel that delivers torque and towing confidence for every job. Located in Mountain Home, ID, this GMC Sierra 2500 blends work-ready capability with modern tech and comfort, making it an ideal choice for contractors, ranchers, and outdoor enthusiasts who demand performance and value. Loaded with must-have features including Android Auto for seamless smartphone integration, Automatic Climate Control for consistent cabin comfort, Remote Start for convenience in any weather, and an Off-Road Package that enhances capability on rough terrain. This GMC Sierra is backed by a CARFAX 1-Owner history, giving extra peace of mind about its maintenance and care. Feel the confidence of diesel power partnered with 4WD traction to tow trailers, haul equipment, and navigate Idaho backroads with ease. The SLE trim balances functionality and comfort with durable materials, supportive seating, and smart storage solutions for daily use or extended trips. Priced to move â" this GMC Sierra 2500 offers the best price in the area for comparable diesel heavy-duty trucks, delivering exceptional value without compromising performance. Located in Mountain Home ID, itâs ready for immediate test drives and local pickup. Reach out to schedule a viewing and experience the torque, durability, and features that set this 2021 GMC Sierra 2500 SLE apart.
Equipment
The vehicle features a hands-free Bluetooth phone system. Keep your hands warm all winter with a heated steering wheel in the GMC Sierra . An off-road package is installed on this unit so you are ready for your four-wheeling best. Protect the vehicle from unwanted accidents with a cutting edge backup camera system. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving this GMC Sierra. Anywhere on the planet, you will have hundreds of digital stations to choose from. This model offers Automatic Climate Control for personalized comfort. Start this unit from inside with remote start. This GMC Sierra offers Apple CarPlay for seamless connectivity. This vehicle comes equipped with Android Auto for seamless smartphone integration on the road. This GMC Sierra features steering wheel audio controls. Good News! This certified CARFAX 1-owner vehicle has only had one owner before you. Maintaining a stable interior temperature in the vehicle is easy with the climate control system.
Packages
SLE Convenience Package. X31 Off-Road and Protection Package: LT275/70R18E AT BW Tires; Spray-On Pickup Box Bed Liner with GMC Logo; 1st and 2nd Row All-Weather Floor Liner; 18 Machined Aluminum Wheels. X31 Off-Road Package: Off-Road Suspension; Hill Descent Control; Skid Plates. SLE Value Package: Spray-On Pickup Box Bed Liner with GMC Logo. Preferred Equipment Group 3SA: OnStar and GMC Connected Services Capable; Power Front Windows with Passenger Express Down; Remote Keyless Entry; 2-Speed Electronic Shift Transfer Case; Deep-Tinted Glass; Chrome Surround Grille with High Gloss Black Mesh; AM/FM Radio with GMC Infotainment System; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; SiriusXM Radio; Manual Tilt Wheel Steering Column; Power Windows with Driver Express Up/down; Compass Located in Instrument Cluster; Steering Wheel Audio Controls; Power Door Locks. 18 Machined Aluminum Wheels. Spray-On Pickup Box Bed Liner with GMC Logo. Power-Adjustable Black Outside Mirrors. Quicksilver Metallic. 10-Way Power Driver Seat Adjuster with Lumbar. LED Fog Lamps. Electric Rear-Window Defogger. 1st and 2nd Row All-Weather Floor Liner. LT275/70R18E AT BW Tires. Skid Plates. LED Cargo Area Lighting. LED Smoked Amber Roof Marker Lamps. 5th Wheel and Gooseneck Trailer Wiring Provisions. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**
Additional Information
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Used 2021 GMCSierra 2500 HD SLE
- Exterior Color
- Quicksilver
- Interior Color
- Jet Black
- Odometer
- 110,616 miles
- Transmission
- 10-speed automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT49MEY8MF271453
- Stock Number
- HG06006A
GMC
Sierra 2500 HD
Highlighted Features
- Wireless phone connectivity
- Split folding rear seat
- Perimeter/approach lights
- Remote keyless entry
- Steering wheel mounted audio controls
- Fully automatic headlights
- Alloy wheels
- Heated door mirrors
- Trailer hitch receiver
- Trailer sway control
Included Packages & Accessories
- X31 Off-Road and Protection Package: LT275/70R18E AT BW Tires; Spray-On Pickup Box Bed Liner with GMC Logo; 1st and 2nd Row All-Weather Floor Liner; 18 Machined Aluminum Wheels
- X31 Off-Road Package: Off-Road Suspension; Hill Descent Control; Skid Plates
- SLE Value Package: Spray-On Pickup Box Bed Liner with GMC Logo
- Preferred Equipment Group 3SA: OnStar and GMC Connected Services Capable; Power Front Windows with Passenger Express Down; Remote Keyless Entry; 2-Speed Electronic Shift Transfer Case; Deep-Tinted Glass; Chrome Surround Grille with High Gloss Black Mesh; AM/FM Radio with GMC Infotainment System; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; SiriusXM Radio; Manual Tilt Wheel Steering Column; Power Windows with Driver Express Up/down; Compass Located in Instrument Cluster; Steering Wheel Audio Controls; Power Door Locks
- 18 Machined Aluminum Wheels
- Spray-On Pickup Box Bed Liner with GMC Logo
- Quicksilver Metallic
- 10-Way Power Driver Seat Adjuster with Lumbar
- 1st and 2nd Row All-Weather Floor Liner
- LT275/70R18E AT BW Tires
- Skid Plates
- 5th Wheel and Gooseneck Trailer Wiring Provisions
- Apple CarPlay/Android Auto smart device mirroring
- 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
- Rear Vision Camera rear mounted camera
- Brake assist system
- Cruise control with steering wheel mounted controls
- Keyfob remote start
- Heated steering wheel
- Heated driver and front passenger seats
- Primary monitor touchscreen
- Driver seat power reclining
- lumbar support
- cushion tilt
- fore/aft control and height adjustable control
- Part-time 4WD
- Duramax 6.6L V-8 diesel direct injection
- intercooled turbo
- diesel
- engine with 445HP
- Teen Driver restricted driving mode/alerts
- Keyless Open/Keyless Start with hands-free access and push button start
- Keyfob window control
- Bluetooth wireless audio streaming
- Hitch Guidance vehicle to trailer hitching assist
- Dual-zone front climate control
- Immobilizer
- Bluetooth handsfree wireless device connectivity
- Trailer brake controller
- Trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- External memory control
- Internet radio capability
- StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
- Hill Descent Control (HDC)
- Hill start assist
- Automatic climate control
- Rear Seat Reminder rear seat check warning
- LED daytime running lights
- LED front fog lights
- Leather and metal-look steering wheel
- BedStep integrated side steps
- EZ Lift
- Easy lower tailgate
- Integrated tailgate step
- Trailer hitch light
- Manual rear child safety door locks
- Heated driver and passenger side door mirrors
- Auto-dimming driver side mirror
- Power folding door mirrors
- Auto-dimming passenger side mirror
- Manual tilting steering wheel
- Manual telescopic steering wheel
- Metallic paint
- Chrome hub wheel covers
- Manual extendable trailer mirrors
- Exterior mirror LED spot lights
- 18 x 8-inch front and rear machined w/painted accents aluminum wheels
- SLE Convenience Package
- Power-Adjustable Black Outside Mirrors
- LED Fog Lamps
- Electric Rear-Window Defogger
- LED Cargo Area Lighting
- LED Smoked Amber Roof Marker Lamps
Included Packages & Options
- SLE Convenience Package$2,330
- Electric Rear-Window Defogger
- LED Cargo Area Lighting
- LED Fog Lamps
- LED Smoked Amber Roof Marker Lamps
- Power-Adjustable Black Outside Mirrors$510
Included Options
- Skid Plates$150
DETAILED_SPECIFICATIONS hidden
- 1-touch down
- 1-touch up
- Air conditioning
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Illuminated entry
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Rear door bins
- Remote keyless entry
- Speed control
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Single rear wheels
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM
- Primary LCD size: 8.0"
- Speakers: 6
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Front center armrest: w/storage
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: cloth
- Split folding rear seat
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Standard fuel economy fuel type: gasoline
- Variable valve control
- Ground clearance (min): 257mm (10.1")
- Bumpers: 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
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,023mm (79.7")
- Exterior length: 6,352mm (250.1")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- Rear headroom: 1,013mm (39.9")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,037mm (158.9")
- Appearance: analog
- Compass
- Delay-off headlights
- Front reading lights
- Fully automatic headlights
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rear reading lights
- 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
- Traction control
Standard Features
- Electric Rear-Window Defogger
- LED Cargo Area Lighting
- LED Fog Lamps
- LED Smoked Amber Roof Marker Lamps
Dealer Notes
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… - 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!… - 3.0
Don't judge a truck by the appearance
By jmil | on Wednesday, May 11, 2022
Great truck, loved it until the DEF tank heater malfunctioned and shut down the truck. Now sitting waiting for the replacement tank for over 10 weeks. Turns out every HD truck 2020 and 2021 has the same problem and all will need this replacement that is being produced at a snail's pace by GM. Per the dealership, last count, over 9000 trucks like mine are idle waiting for this part. $65000 waste of money and terrible service by GMC (not the local dealership).…
Based on 13 consumer ratings for 2020–2025 models. | Privacy
* MSRP is the Manufacturer's Suggested Retail Price (MSRP) of the vehicle. It does not include any taxes, fees or other charges. Pricing and availability may vary based on a variety of factors, including options, dealer, specials, fees, and financing qualifications. Consult your dealer for actual price and complete details. Vehicles shown may have optional equipment at additional cost.
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* Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness.
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- Retail Value
- $45,300
- Dealer Discount
- -$3,302
- Best Price
- $41,998