The 2018 GMC Sierra 2500HD Base is a rugged and dependable heavy-duty pickup truck designed to handle demanding work with strength and reliability. As the entry-level trim in the Sierra 2500HD lineup, the Base model focuses on providing essential capability without unnecessary frills, making it an ideal choice for those who need a tough truck for towing, hauling, and heavy-duty tasks. Under the hood, the 2018 Sierra 2500HD Base is powered by a durable 6.0-liter V8 engine that delivers solid horsepower and torque, paired with a six-speed automatic transmission. For drivers seeking enhanced power and torque, an available 6.6-liter Duramax turbo-diesel V8 engine option offers impressive towing capacity and fuel efficiency, making this truck highly versatile for various heavy-duty applications. Built on a strong, reinforced frame, the Sierra 2500HD Base boasts excellent towing and payload capabilities, supported by features like heavy-duty suspension and trailer sway control to ensure safe and stable handling when hauling large loads. The exterior is straightforward and functional, with a focus on durability. Basic features include halogen headlights and steel wheels, designed to withstand tough conditions on job sites or rural roads. Inside, the cabin offers a practical and durable environment, with cloth seating and basic technology designed for ease of use. The truck includes a standard infotainment system with Bluetooth connectivity, providing essential convenience for drivers. With its focus on toughness and utility, the 2018 GMC Sierra 2500HD Base delivers dependable performance and rugged durability for drivers who prioritize capability over luxury.
Used 2018 GMCSierra 2500 HD
- Exterior Color
- Summit White
- Interior Color
- Vinyl, Jet Black / Dark Ash, Interior Trim
- Odometer
- 84,642 miles
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- Engine: 6.0L, V-8, SFI, FlexFuel w/ E63 only
- VIN
- 1GT22REG5JZ336544
- Stock Number
- CT1686B
GMC
Sierra 2500 HD
Included Packages & Accessories
Detailed Specifications
- Max seating capacity: 6
- Fuel tank capacity: 36 gal
- Horsepower: 360
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
Tax, title, license and dealer fees (unless itemized above) are extra. Not available with special finance or lease offers. All internet pricing includes financing through dealer.* 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.
This advertised price reflects a $2,000 discount available when financing is secured through the dealership. Customers choosing cash purchase or financing through an external lender will see an adjusted price reflecting the non-application of this financing incentive. We reserve the right to verify the legitimacy of all financing arrangements and may require additional documentation for non-dealer financing options.
- Price
- $29,887
- We're here to help: (877) 393-9329
- We're here to help: (877) 393-9329