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Vehicle Information

VIN: 1GTU9EETXMZ187370
Stock #: FTP3874
  • Body Style Crew Cab Pickup
  • Exterior Color Onyx Black
  • Interior Color Jet Black With Kalahari Accents
  • Mileage 76,706
  • Fuel Economy
    City/Highway 22/26 MPG
  • Engine Diesel I6 3.0L/183
  • Transmission Automatic / 4WD
  • Fuel Type Diesel Fuel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

2021 GMC Sierra 1500 AT4 4WD | VIN: 1GTU9EETXMZ187370 | 76,706 MilesThis 2021 GMC Sierra 1500 AT4 is a premium off-road capable full-size truck finished in Onyx Black with a black interior. With 76,706 miles and a clean, no-accident history, this AT4 delivers the ideal combination of rugged capability, refined comfort, and strong diesel performance.Powered by a diesel engine paired with a smooth 10-speed automatic transmission, this Sierra AT4 offers excellent low-end torque, improved fuel efficiency, and confident towing capability. The factory AT4 package includes an off-road focused suspension, skid plates, hill descent control, and distinctive AT4 styling that separates it from standard Sierra models.Inside, the cabin blends durability with premium materials and modern technology, making this truck equally comfortable for long highway drives, job-site use, or weekend adventures.Key highlights:Diesel engine for strong torque and efficiencyAT4 Off-Road Package with factory suspension tuning4WD (4RM) capability10-speed automatic transmissionOnyx Black exteriorBlack interiorGMC infotainment system with touchscreenApple CarPlay & Android AutoDual-zone automatic climate controlSkid plates and off-road hardwareClean, no-accident vehicle historyThis 2021 GMC Sierra 1500 AT4 Diesel is an excellent choice for buyers who want premium off-road styling, real capability, and the efficiency advantages of a diesel-powered truck.

All Features

  • 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.) (STD)
  • Tow Hitch
  • Turbocharged
  • Locking/Limited Slip Differential
  • Four Wheel Drive
  • Tow Hooks
  • Power Steering
  • ABS
  • 4-Wheel Disc Brakes
  • Aluminum Wheels
  • Tires - Front All-Terrain
  • Tires - Rear All-Terrain
  • Tires - Front All-Season
  • Tires - Rear All-Season
  • Daytime Running Lights
  • Fog Lamps
  • Heated Mirrors
  • Power Mirror(s)
  • Mirror Memory
  • Power Folding Mirrors
  • Privacy Glass
  • Integrated Tailgate Step
  • Bed Liner
  • AM/FM Stereo
  • Satellite Radio
  • MP3 Capability
  • Bluetooth® Connection
  • Auxiliary Audio Input
  • Smart Device Integration
  • Requires Subscription
  • HD Radio
  • Satellite Radio
  • Requires Subscription
  • Satellite Radio
  • Requires Subscription
  • Bluetooth® Connection
  • Bluetooth® Connection
  • Smart Device Integration
  • Steering Wheel Audio Controls
  • WiFi Hotspot
  • Bucket Seats
  • Power Driver Seat
  • Driver Adjustable Lumbar
  • Power Passenger Seat
  • Passenger Adjustable Lumbar
  • Heated Front Seat(s)
  • Mirror Memory
  • Seat Memory
  • Heated Front Seat(s)
  • Cooled Front Seat(s)
  • Pass-Through Rear Seat
  • Floor Mats
  • Floor Mats
  • Adjustable Steering Wheel
  • Leather Steering Wheel
  • Heated Steering Wheel
  • Power Windows
  • Power Windows
  • Power Windows
  • Power Door Locks
  • Keyless Entry
  • Power Door Locks
  • Keyless Start
  • Remote Engine Start
  • Cruise Control
  • Security System
  • MP3 Capability
  • Auxiliary Audio Input
  • MP3 Capability
  • Auxiliary Audio Input
  • Power Outlet
  • Power Outlet
  • Climate Control
  • Multi-Zone A/C
  • A/C
  • Rear Defrost
  • Auto-Dimming Rearview Mirror
  • Traction Control
  • Stability Control
  • Daytime Running Lights
  • Driver Air Bag
  • Passenger Air Bag
  • Front Side Air Bag
  • Front Head Air Bag
  • Rear Head Air Bag
  • Passenger Air Bag Sensor
  • Telematics
  • Requires Subscription
  • Back-Up Camera
  • Back-Up Camera
  • Driver Restriction Features
  • Tire Pressure Monitor
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May not represent actual vehicle. (Options, colors, trim and body style may vary)