Combine Power And Style

A pickup truck is called upon to perform many tasks, and this GMC model is engineered for incredible versatility while offering luxurious style. Five powertrain options and a host of innovative performance and technology systems make the 2021 GMC Sierra 1500 a top pick among trucks. The sales staff at your premier 2021 GMC Sierra 1500 dealer in Fort Collins, CO, is eager to tell you more about the best-in-class cargo bed volume, a diesel engine that achieves a class-leading torque rating, the world's first six-function tailgate, and much more. This GMC truck is available in six trim levels, leading off with the base 2021 GMC Sierra, the 2021 GMC Sierra 1500 SLE, the 2021 GMC Sierra 1500 Elevation, and the 2021 GMC Sierra 1500 SLT. The 2021 GMC Sierra 1500 AT4 is constructed for off-road dominance with a standard two-inch factory-installed lift. The premium 2021 GMC Sierra 1500 Denali comes with two engine options and an upscale cabin. Explore more outstanding traits for the 2021 GMC Sierra 1500 by visiting Markley Buick GMC today!

Class-Leading Abilities

Your top-notch Fort Collins, CO, 2021 GMC Sierra 1500 dealer offers five powerplants, such as the available 3.0L Duramax® Turbo-Diesel I6 engine that generates 277 horsepower and a best-in-class 460 lb.-ft. of torque through a seamless 10-speed automatic transmission. For extra muscle, try the available 6.2L EcoTec®3 V8 motor that unleashes 420 horsepower and 460 lb.-ft. of torque. A maximum towing capacity of 11,800 lbs. with the 6.2L V8 engine provides plenty of force to tow your trailer or boat around the mountainous countryside. Your first-class 2021 GMC Sierra 1500 dealer in Fort Collins, CO, wants you to know about the incredible hauling capabilities with a best-in-class 89.1 cu.ft. of cargo volume. The world's first six-function GMC MultiPro Tailgate improves loading and access with a step among the configurations. Learn about all these features when you stop by the Markley Buick GMC showroom.

Spacious 2021 GMC Sierra 1500 Interior

Enjoy class-leading front headroom and legroom by choosing the 2021 GMC Sierra 1500 Crew Cab. This configuration joins the Regular Cab and Double Cab choices at your local 2021 GMC Sierra dealer in CO, and the cabins for all three feature deluxe upholstery. The available best-in-class 15 camera views, including Rear Trailer View, helps you smoothly back up your boat or trailer. The GMC Infotainment System integrates voice recognition, available navigation, hands-free mobile phone capabilities, Apple CarPlay™, Android Auto™, available 4G LTE Wi-Fi, and more. Come to your premier Fort Collins, CO, 2021 GMC Sierra 1500 dealer to see these magnificent features and take a test drive today.

Contact Markley Buick GMC



Directions FORT COLLINS, CO 80525

  • Contact: 970-223-1234


  • Monday 8:00 am - 8:00 pm
  • Tuesday 8:00 am - 8:00 pm
  • Wednesday 8:00 am - 8:00 pm
  • Thursday 8:00 am - 8:00 pm
  • Friday 8:00 am - 8:00 pm
  • Saturday 8:00 am - 5:30 pm
  • Sunday Closed