Colonial Chevrolet

171 Great Road, Acton, MA 01720
4.6
4.6 out of 5 stars

Used 2021 GMC Sierra 1500 SLT

97,076 miles
For Sale:$33,995
Estimated payment:$771/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $30,500 and $35,700, while the current price is $33,995.$30,500 - $35,700$33,995
  • Priced at $33,995, this vehicle is within the current market price range of $30,500 to $35,700.

  • It has 97,076 miles, which is 13,676 (16%) above the median mileage of 83,400.

Note: This is an estimate based on a variety of factors (experimental feature). It is intended to provide a fair market value range to help guide your buying decision.

View Full Value Report
  • Truck
  • Pickup
  • Crew Cab
  • Extended Front Legroom
  • Condition
    Used
  • Mileage
    97,076miles
  • Aggregate Ratings
    3.6
    3.6 out of 5 stars
  • Generation
    4(2019 - 2026)
  • Trim
    SLT
  • Drivetrain
    4X4
  • Transmission
    10-Speed Shiftable Automatic
  • Exterior Color
    Pacific Blue Metallic (Blue)Factory Paint Code:GA0
  • Interior Color
    Jet Black (Black)Factory Paint Code:H1Y
  • Size Segment
    1/2 Ton
  • Doors
    4
  • Max Seating
    6
  • Weight Class
    6,000-10,000 lbs. (2)
  • NHTSA Safety Ratings
    4
    4 out of 5 stars
  • Final Assembly Point
    Silao, Mexico
  • VIN
    3GTU9DET4MG337189

Engine3L I6 Diesel 277hp

  • Fuel Type:Diesel
  • Max Horsepower:277 hp @ 3750 rpm
  • Max Torque:460 ft.lbf @ 1500 rpm
  • Brand:Duramax
  • Displacement:3liters
  • Block Type:I
  • Cylinders:6
  • Aspiration:Turbo
  • Fuel Induction:Common Rail Direct Injection
  • Cam Type:DOHC
  • Stroke:3.54
  • Bore:3.3
  • Valves:24

Message from the seller

Highlights of this 2021 GMC Sierra 1500 include: $6,200 below J.D. Power Retail! EPA 26 MPG Hwy/22 MPG City! Navigation, Heated Seats, Satellite Radio, Back-Up Camera, 4x4, Chrome Wheels, Trailer Hitch, Onboard Communications System, DRIVER ALERT PACKAGE I, SLT PREFERRED PACKAGE

SERVICE WORK COMPLETED
Service Work completed on this GMC Sierra 1500 includes: Complete Multi-Point Inspection, Oil & Filter Change by a Factory Trained Technician, Battery Voltage Test, Tires Inspected, Brake Inspection, Emissions System Check, Professional Detailed Inside and Out, Function Test all Lights, Check the Complete Exhaust System, Cooling System Inspection, Transmission Fluid Inspection, Differential Fluid Inspection, Function Test all Options & Accessories.

WHY BUY FROM US
Our unmatched service and diverse Chevrolet inventory have set us apart as the preferred dealer in Acton. Visit us today to discover why we have the best reputation in the Acton area.

OPTION PACKAGES
SLT PREMIUM PLUS PACKAGE includes (PCY) SLT Convenience Package, (PDY) SLT Preferred Package, (PQB) Driver Alert Package I, (PDJ) Driver Alert Package II, (NZM) 20 Polished aluminum wheels, (BVT) Chrome assist steps and (CGN) spray-on bedliner. With 4WD model and (L84) 5.3L EcoTec3 V8 engine (MQB) 10-speed automatic transmission is included. DRIVER ALERT PACKAGE II includes (UEU) Forward Collision Alert, (UHX) Lane Keep Assist/Lane Departure Warning, (UHY) Automatic Emergency Braking, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (KSG) Adaptive Cruise Control and (UE4) Following Distance Indicator Includes (HS1) Safety Alert Seat. SLT PREFERRED PACKAGE includes (IOT) 8 diagonal Premium GMC Infotainment with navigation, (UQA) Bose Premium Audio System and (K4C) Wireless Charging, X31 OFF-ROAD AND PROTECTION PACKAGE includes (X31) Off-Road Package, (CGN) spray-on bedliner and (RIA) All-weather floor liners, LPO Includes (NZM) 20 Polished aluminum wheels and (QAE) 275/60R20 all-terrain, blackwall tires. ENGINE, DURAMAX 3.0L TURBO-DIESEL I6 (277 hp [206.6 kW] @ 3750 rpm, 460 lb-ft of torque [623.7 N-m] @ 1500 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.), DRIVER ALERT PACKAGE I includes (UD5) Front and Rear Park Assist, (UKC) Lane Change Alert with Side Blind Zone Alert and (UFG) Rear Cross Traffic Alert (Includes Perimeter Lighting. Includes (V76) recovery hooks on 2WD models. AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 8 DIAGONAL COLOR TOUCH-SCREEN, INCLUDES MULTI-TOUCH DISPLAY, AM/FM STEREO Bluetooth® streaming audio for music and most phones; featuring wireless Android Auto® and Apple CarPlay® capability for compatible phones, advanced voice recognition, in-vehicle apps, personalized profiles for infotainment and vehicle settings. Includes greater memory Note: (PZ8) Hitch Guidance with hitch view is included with trim.), TRANSMISSION, 10-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking Most vehicles built on or after 6-7-2021 with a V8 engine and (MQB) 10-speed automatic transmission will have (NSS) Not Equipped with Automatic Stop/Start, which removes Automatic Stop/Start and its content.), SLT CONVENIENCE PACKAGE includes (A50) bucket seats with (D07) center console, (KQV) ventilated front seats, (A48) rear sliding power window, (UG1) Universal Home Remote, (MCZ) 2 USB ports with auxiliary input (IP Mounted), (MCR) 2 USB Ports/SD Card/Aux Jack (Inside Console with bucket seats) and (KA6) rear heated seats (KA6) Heated Second Row Outboard Seats are included on Crew Cab models built before 7-26-2021. Certain vehicles built on or after 7-26-2021 will include (RFU) Not Equipped with Heated Second Row Outboard Seats, which removes (KA6) Heated Second Row Outboard Seats. See dealer for details.).

Pricing analysis performed on 4/20/2026. Fuel economy calculations based on orig

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Listed on April 21, 2026 (17 hours ago)
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Cruz™ Disclaimer: Vehicle details shown on this site are provided by sellers or third parties. Cruz™ does not independently verify this information and is not liable for its accuracy. All services and content are offered without any warranty, either expressed or implied. Learn more here.MPG & Max Range: Fuel economy estimates are provided by the EPA and are intended for comparison purposes only. Your actual mileage will vary depending on driving conditions, vehicle condition, and other factors.Price: Prices shown may not include taxes, fees, or other charges. Prices and availability are subject to change without notice. Contact the seller for the most current pricing information.Options & Features: Installed options may not be shown. Contact the seller for more information about available features and options.