Discover the ultimate driving experience in this 2021 GMC Sierra 1500 AT4. This rugged and capable truck is packed with premium features that elevate your every adventure.
Boasting a powerful 3.0L I6 Duramax Diesel engine, this Sierra AT4 delivers exceptional performance and efficiency, with an impressive 22 city/26 highway MPG. The advanced 4-wheel drive system and off-road-tuned suspension ensure you can conquer any terrain with confidence.
Key features include:
AT4 Premium Package
AT4 Carbonpro Edition
Driver Alert Package II
Technology Package
Power Sunroof
Bose Premium Audio System
Multicolor Head-Up Display
Heated and Ventilated Front Seats
Wireless Charging
Rear Camera Mirror
HD Surround Vision
Forward Collision Alert
Lane Keep Assist
Automatic Emergency Braking
Experience the perfect blend of capability, technology, and comfort in this exceptional 2021 GMC Sierra 1500 AT4. This truck is ready to elevate your driving experience and take you further than ever before. Visit our showroom today to see it in person and arrange a test drive. We're confident you'll be impressed by its uncompromising performance and premium features.
This Sierra AT4 is the ultimate expression of GMC's commitment to quality and innovation. With its rugged good looks, advanced technology, and exceptional off-road capabilities, it's the perfect companion for your next adventure. Whether you're tackling the toughest terrain or simply commuting in style, this truck is built to exceed your expectations.
We invite you to explore the impressive capabilities and premium features of this 2021 GMC Sierra 1500 AT4. Experience the difference for yourself and discover why it's the perfect choice for discerning truck enthusiasts. Visit our showroom today and let us help you find the perfect vehicle to elevate your driving experience.
Pre-Owned 2021 GMCSierra 1500 AT4
- Diesel
- Exterior Color
- Summit White
- Interior Color
- JET BLACK WITH KALAHARI ACCENTS, PERFORATED LEATHE
- Odometer
- 65,346 miles
- Fuel Economy
- 14/19 MPG City/Hwy
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- Engine: Duramax 3.0L, Turbo-Diesel, Inline 6 Cylinder
- VIN
- 1GTU9EET1MZ136243
- Stock Number
- PM576442
GMC
Sierra 1500
Included Packages & Accessories
Detailed Specifications
- Max seating capacity: 5
- Fuel System: Direct Injection
- Fuel tank capacity: 24 gal
- Horsepower: 277
Dealer Notes
KBB.com Consumer Reviews

Overall4Out of 5
- 3.0
Nice truck
By froggy | on Sunday, December 06, 2020
I purchased this truck brand new and at 3900 miles I started to have a misfire. The warranty put a refurbished rebuilt engine in it. I was not aware that the warranty doesn't put new parts in just refurbished rebuilt parts. I traded in and lost my favorite blue truck. Not a fan of the whole process. Love the truck just not how the warranty went. I would not own another brand or model the 2020 is the nicest riding and looking. Just got a bad motor from the manufacture.… - 5.0
Great Truck
By Mel | on Sunday, April 25, 2021
I love it, I get compliments every where I go, and it apparently worth more than I paid for it brand new, a year and a half later. can't ask for much more than that.… - 5.0
Well done GM
By Tony | on Thursday, November 26, 2020
This truck has a 10 speed transmission that you can barely feel it shift. Traded in an F150 and test drove a similar equipped Ram. Although the Ram was nice, the styling of the GMC won me over, along with the tailgate! It also pulls my boat way better than the Ford, just smoother all around. The cabin is very quiet and the gas mileage is much better than V8 Ford. The cabin is super quiet and the ride is awesome. Love the adaptive cruise control too. The technology is fine and the screen is plenty big. Remember, you are driving this truck, not going to thr drive in! Most importantly, the controls are simple to use and Bose stereo sounds great! Oh, and I got it cheaper than the similar Ram too!…
Based on 88 consumer ratings for 2019–2026 models. | Privacy
Tax, title, license and dealer fees (unless itemized above) are extra. Not available with special finance or lease offers. MPG estimates on this website are EPA estimates; your actual mileage may vary. For used vehicles, MPG estimates are EPA estimates for the vehicle when it was new. The EPA periodically modifies its MPG calculation methodology; all MPG estimates are based on the methodology in effect when the vehicles were new (please see the ?Fuel Economy? portion of the EPA?s website for details, including a MPG recalculation tool). The features and options listed are for the new 2020 GMC Sierra 1500 and may not apply to this specific vehicle. Tax, title, license (unless itemized above) are extra. Not available with special finance, lease and some other offers.
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