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Used 2021 GMC Sierra 1500 AT4

VIN: 3GTP9EEL4MG222045
Stock #: MG222045

82,387 mi.

$40,216

Vehicle Details

MPG:14/19 (City/Hwy)
Trans.:10-Speed Automatic
Engine:8 Cylinders
Drivetrain:Four Wheel Drive
Fuel Type:Gasoline
Ext. Color:Onyx Black
Int. Color:Jet Black With Kalahari Accents
View all Technical Specifications
Sale Price
$39,991
Documentation Fee
+$225
Final Price
$40,216
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Description

Recent Arrival! Doggett Ford South Loop is proud to present you with another True Market Priced Vehicle. This 2021 GMC Sierra 1500 AT4 is loaded with the following Factory Options: AT4 Preferred Package (Power Sliding Rear Window w/Rear Defogger, Premium Bose 7-Speaker Sound System, Radio: Premium GMC Infotainment Sys w/Navigation, SiriusXM w/360L, Universal Home Remote, and Wireless Charging), AT4 Premium Package (AT4 High Clearance Step (LPO)), Driver Alert Package I (Lane Change Alert w/Side Blind Zone Alert, Perimeter Lighting, Rear Cross Traffic Alert, and Ultrasonic Front & Rear Park Assist), Driver Alert Package II (Adaptive Cruise Control, Automatic Emergency Braking, Following Distance Indicator, Forward Collision Alert, Front Pedestrian Braking, IntelliBeam Automatic High Beam On/Off, Lane Keep Assist w/Lane Departure Warning, and Safety Alert Seat), Preferred Equipment Group 4SB (12-Volt Rear Auxiliary Power Outlet, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 USB Ports, 2 USB Ports (1st Row), 4.2″ Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, Auto-Locking Rear Differential, Auxiliary External Transmission Oil Cooler, Body-Color Surround Grille, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Floor-Mounted Center Console, Front Prem Floor Liners w/Removable Carpet Insert, GMC Connected Access Capable, HD Rear Vision Camera, Heated Driver & Front Outboard Passenger Seating, Heavy-Duty Air Filter, Hill Descent Control, Hitch Guidance w/Hitch View, In-Vehicle Trailering App, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel & Telescoping Steering Column, OnStar & GMC Connected Services Capable, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Front Windows w/Driver Express Up/Down, Power Rear Windows w/Express Down, ProGrade Trailering System, Rear Dual USB Charging-Only Ports, Rear Prem Floor Liners w/Removable Carpet Insert, Rear Wheelhouse Liners, Red Recovery Hooks, Remote Vehicle Starter System, Spray-On Pickup Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Theft Deterrent System (Unauthorized Entry), and Ventilated Driver & Front Passenger Seats), Technology Package (8″ Driver Information Center, Bed View Camera, HD Surround Vision w/2 Trailer View Camera Provisions, Multicolor 15″ Diagonal Head-Up Display, and Rear Camera Mirror), Trailering Package (Hitch Guidance), 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 170 Amp Alternator, 18″ x 8.5″ Machined Aluminum Wheels, 220 Amp Alternator, 3.23 Rear Axle Ratio, 4-Wheel Disc Brakes, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic temperature control, Brake assist, Bumpers: body-color, Delay-off headlights, Driver door bin, Driver Memory, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Engine Block Heater, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Heated door mirrors, Heated front seats, Heated steering wheel, Illuminated entry, Low tire pressure warning, Memory seat, Occupant sensing airbag, Off-Road Suspension, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Seat Trim, Power door mirrors, Power driver seat, Power passenger seat, Power steering, Power windows, Premium audio system: GMC Infotainment System, Radio data system, Radio: Premium GMC Infotainment Sys w/Multi-Touch, Rear reading lights, Rear seat center armr

Standard Features

  • Preferred Equipment Group 4SB
  • 3.23 Rear Axle Ratio
  • Auto-Locking Rear Differential
  • 18″ x 8.5″ Machined Aluminum Wheels
  • Perforated Leather-Appointed Front Seat Trim
  • 10-Way Power Driver Seat Adjuster w/Lumbar
  • Off-Road Suspension
  • Radio: Premium GMC Infotainment Sys w/Multi-Touch
  • Radio: Premium GMC Infotainment Sys w/Navigation
  • AT4 Preferred Package
  • AT4 Premium Package
  • Driver Alert Package I
  • Driver Alert Package II
  • Technology Package
  • Color-Keyed Carpeting Floor Covering
  • Front Prem Floor Liners w/Removable Carpet Insert
  • OnStar & GMC Connected Services Capable
  • 120-Volt Instrument Panel Power Outlet
  • Spray-On Pickup Bed Liner w/AT4 Logo
  • LED Cargo Area Lighting
  • AT4 High Clearance Step (LPO)
  • Trailering Package
  • 220 Amp Alternator
  • Heavy-Duty Air Filter
  • Engine Block Heater
  • Integrated Trailer Brake Controller
  • Electric Rear-Window Defogger
  • Bed View Camera
  • Deep-Tinted Glass
  • SiriusXM w/360L
  • Driver Memory
  • Power Sliding Rear Window w/Rear Defogger
  • 10-Way Power Passenger Seat Adjuster w/Lumbar
  • GMC Connected Access Capable
  • Power Front Passenger Windows w/Express Up/Down
  • Power Rear Windows w/Express Down
  • Keyless Open & Start
  • Power Door Locks
  • Power Front Windows w/Driver Express Up/Down
  • Rear Wheelhouse Liners
  • Rear Prem Floor Liners w/Removable Carpet Insert
  • Remote Vehicle Starter System
  • Hitch Guidance
  • Floor-Mounted Center Console
  • Rear Camera Mirror
  • Body-Color Surround Grille
  • Safety Alert Seat
  • Hill Descent Control
  • Wireless Charging
  • Heated Driver & Front Outboard Passenger Seating
  • 120-Volt Bed Mounted Power Outlet
  • Auxiliary External Transmission Oil Cooler
  • 12-Volt Rear Auxiliary Power Outlet
  • Ventilated Driver & Front Passenger Seats
  • Adaptive Cruise Control
  • 170 Amp Alternator
  • 2 USB Ports
  • 2 USB Ports (1st Row)
  • Electrical Lock Control Steering Column
  • Manual Tilt-Wheel & Telescoping Steering Column
  • 2-Speed Transfer Case
  • Perimeter Lighting
  • ProGrade Trailering System
  • Hitch Guidance w/Hitch View
  • IntelliBeam Automatic High Beam On/Off
  • In-Vehicle Trailering App
  • Ultrasonic Front & Rear Park Assist
  • 4.2″ Diagonal Color Display Driver Info Center
  • Following Distance Indicator
  • Forward Collision Alert
  • Rear Cross Traffic Alert
  • Universal Home Remote
  • Red Recovery Hooks
  • 8″ Driver Information Center
  • Lane Keep Assist w/Lane Departure Warning
  • Automatic Emergency Braking
  • Steering Wheel Audio Controls
  • Lane Change Alert w/Side Blind Zone Alert
  • Front Pedestrian Braking
  • Premium Bose 7-Speaker Sound System
  • 6-Speaker Audio System Feature
  • Rear Dual USB Charging-Only Ports
  • Theft Deterrent System (Unauthorized Entry)
  • Multicolor 15″ Diagonal Head-Up Display
  • HD Rear Vision Camera
  • HD Surround Vision w/2 Trailer View Camera Provisions
  • 4G LTE Wi-Fi Hotspot Capable
  • 4-Wheel Disc Brakes
  • Apple CarPlay/Android Auto
  • AM/FM radio: SiriusXM with 360L
  • Premium audio system: GMC Infotainment System
  • Compass
  • Auto-dimming Rear-View mirror
  • Ventilated front seats
  • Variably intermittent wipers
  • Trip computer
  • Traction control
  • Tilt steering wheel
  • Telescoping steering wheel
  • Steering wheel mounted audio controls
  • Split folding rear seat
  • Speed-sensing steering
  • Speed control
  • Security system
  • Remote keyless entry
  • Rear window defroster
  • Rear step bumper
  • Rear seat center armrest
  • Rear reading lights
  • Radio data system
  • Power windows
  • Power steering
  • Power passenger seat
  • Power driver seat
  • Power door mirrors
  • Passenger vanity mirror
  • Passenger door bin
  • Panic alarm
  • Overhead console
  • Overhead airbag
  • Outside temperature display
  • Occupant sensing airbag
  • Memory seat
  • Low tire pressure warning
  • Illuminated entry
  • Heated steering wheel
  • Heated front seats
  • Heated door mirrors
  • Fully automatic headlights
  • Front wheel independent suspension
  • Front reading lights
  • Front fog lights
  • Front dual zone A/C
  • Front anti-roll bar
  • Dual front side impact airbags
  • Dual front impact airbags
  • Driver vanity mirror
  • Driver door bin
  • Delay-off headlights
  • Bumpers: body-color
  • Brake assist
  • Automatic temperature control
  • Auto-dimming door mirrors
  • Alloy wheels
  • ABS brakes
  • Voltmeter
  • Tachometer
  • Front Center Armrest
  • Front Bucket Seats
  • Electronic Stability Control
  • Air Conditioning
  • 6 Speakers

We will transfer this vehicle to our closest location near you for free!

Vehicle Location

Doggett Ford South Loop
3440 S Loop West
Houston, TX 77025
Get Directions

VEHICLE DATA
Certain specifications, prices and equipment data have been provided under license from Chrome Data Solutions (\’Chrome Data\’). © 2026 Chrome Data Solutions, LP. All Rights Reserved. This information is supplied for personal use only and may not be used for any commercial purpose whatsoever without the express written consent of Chrome Data. Chrome Data makes no guarantee or warranty, either expressed or implied, including without limitation any warranty of merchantability or fitness for particular purpose, with respect to the data presented here. All specifications, prices and equipment are subject to change without notice.

ESTIMATE MPG
EPA mileage ratings are supplied by Chrome Data Solutions, LP for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid models only) and other factors.

Based on 2019 EPA mileage ratings. Your MPGe/MPG and driving range will vary depending on driving conditions, how you drive and maintain your vehicle, battery-pack age/condition, and other factors.

PRICING
Vehicle pricing is believed to be accurate. Tax, title and registration are not included in prices shown unless otherwise stated. Manufacturer incentives may vary by region and are subject to change. Vehicle information & features are based upon standard equipment and may vary by vehicle. Monthly payments may be higher or lower based upon incentives, qualifying programs, credit qualifications, residency & fees. No claims, or warranties are made to guarantee the accuracy of vehicle pricing, payments or actual equipment. Call to confirm accuracy of any information.

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  • ©2026 Doggett Automotive Group. All rights reserved.
  • Dealership Websites by JAZEL

Technical Specifications

  • Vehicle Name: GMC Sierra 1500
  • Body Style: Crew Cab Pickup
  • Body Code: E63
  • Drivetrain: Four Wheel Drive
  • Passenger Capacity: 5
  • Gross Axle Wt Rating – Front: 3800
  • Gross Axle Wt Rating – Rear: 3800
  • Curb Weight – Front: 2839
  • Curb Weight – Rear: 1976
  • EPA Greenhouse Gas Score:
  • Gross Vehicle Weight Rating Cap: 7000, 7100
  • Fuel Economy Est-Combined: 16, 17
  • EPA Fuel Economy Est – City: 14, 15
  • EPA Fuel Economy Est – Hwy: 19, 19
  • Gross Combined Wt Rating: 15000
  • Dead Weight Hitch – Max Trailer Wt.: 5000
  • Dead Weight Hitch – Max Tongue Wt.: 500
  • Wt Distributing Hitch – Max Trailer Wt.: 8600
  • Wt Distributing Hitch – Max Tongue Wt.: 860
  • Fifth Wheel Hitch – Max Trailer Wt.: 6300
  • Fifth Wheel Hitch – Max Tongue Wt.: 1575
  • Maximum Trailering Capacity: 9200
  • Engine Order Code: L87
  • Engine Type: Gas V8
  • Displacement: 6.2L/376
  • Fuel System: Direct Injection
  • SAE Net Horsepower @ RPM: 420 @ 5600
  • SAE Net Torque @ RPM: 460 @ 4100
  • Trans Order Code: MQB
  • Trans Type: 10
  • Trans Description Cont.: Automatic
  • Trans Description Cont. Again:
  • First Gear Ratio (:1): 4.69
  • Second Gear Ratio (:1): 2.98
  • Third Gear Ratio (:1): 2.15
  • Fourth Gear Ratio (:1): 1.8
  • Fifth Gear Ratio (:1): 1.52
  • Sixth Gear Ratio (:1): 1.28
  • Reverse Ratio (:1): 4.86
  • Clutch Size:
  • Trans Power Take Off:
  • Trans PTO Access:
  • Transfer Case Model: Magna
  • Transfer Case Gear Ratio (:1), High: 1.0
  • Transfer Case Gear Ratio (:1), Low: 2.69
  • Transfer Case Power Take Off:
  • Cold Cranking Amps @ 0° F (Primary): 730
  • Cold Cranking Amps @ 0° F (2nd):
  • Tons/yr of CO2 Emissions @ 15K mi/year: 10.3, 11.1
  • Maximum Alternator Capacity (amps): 170, 220
  • Maximum Alternator Watts: – TBD –
  • Total Cooling System Capacity: – TBD –
  • Engine Oil Cooler: Yes
  • Frame Type: Hydroformed
  • Suspension Type – Front: Independent
  • Suspension Type – Rear: Solid Axle
  • Spring Capacity – Front: 3800
  • Spring Capacity – Rear: 3850
  • Axle Type – Front: – TBD –
  • Axle Type – Rear: – TBD –
  • Axle Capacity – Front: 3800
  • Axle Capacity – Rear: 3800
  • Axle Ratio (:1) – Front: 3.23
  • Axle Ratio (:1) – Rear: 3.23
  • Shock Absorber Diameter – Front: 50
  • Shock Absorber Diameter – Rear: 51
  • Stabilizer Bar Diameter – Front: 1.30
  • Stabilizer Bar Diameter – Rear:
  • Front Tire Order Code: QAE, QFV, R3O, XCK
  • Rear Tire Order Code: QAE, QFV, R3O, XCK
  • Spare Tire Order Code: QAQ, XCQ
  • Front Tire Size: 265/65R18SL, 275/60R20SL, LT265/60R20, LT275/65R18C
  • Rear Tire Size: 265/65R18SL, 275/60R20SL, LT265/60R20, LT275/65R18C
  • Spare Tire Size: 255/80R17SL, 265/70R17SL
  • Front Tire Capacity: – TBD –
  • Rear Tire Capacity: – TBD –
  • Spare Tire Capacity: – TBD –
  • Revolutions/Mile @ 45 mph – Front: – TBD –
  • Revolutions/Mile @ 45 mph – Rear: – TBD –
  • Revolutions/Mile @ 45 mph – Spare: – TBD –
  • Front Wheel Size: 18 x 8.5, 20 x 9.0
  • Rear Wheel Size: 18 x 8.5, 20 x 9.0
  • Spare Wheel Size: 17 x – TBD –
  • Front Wheel Material: Aluminum
  • Rear Wheel Material: Aluminum
  • Spare Wheel Material: Steel
  • Steering Type: Electric Rack & Pinion
  • Steering Ratio (:1), On Center: – TBD –
  • Steering Ratio (:1), At Lock: – TBD –
  • Turning Diameter – Curb to Curb: 46.3, 46.9
  • Turning Diameter – Wall to Wall: – TBD –
  • Brake Type: Pwr
  • Brake ABS System: 4-Wheel
  • Brake ABS System (Second Line):
  • Disc – Front (Yes or ): Yes
  • Disc – Rear (Yes or ): Yes
  • Front Brake Rotor Diam x Thickness: 13.5 x 1.18
  • Rear Brake Rotor Diam x Thickness: 13.6 x 0.79
  • Drum – Rear (Yes or ):
  • Rear Drum Diam x Width:
  • Fuel Tank Capacity, Approx: 24
  • Aux Fuel Tank Capacity, Approx:
  • Fuel Tank Location: – TBD –
  • Aux Fuel Tank Location:
  • Front Head Room: 43.03
  • Front Leg Room: 44.53
  • Front Shoulder Room: 66.02
  • Front Hip Room: 61.18
  • Second Head Room: 40.12
  • Second Leg Room: 43.4
  • Second Shoulder Room: 65.16
  • Second Hip Room: 60.24
  • Wheelbase: 147.53
  • Length, Overall: 231.72
  • Width, Max w/o mirrors: 81.24
  • Height, Overall: 78.35
  • Overhang, Front: – TBD –
  • Overhang, Rear w/o bumper: – TBD –
  • Front Bumper to Back of Cab: – TBD –
  • Cab to Axle: – TBD –
  • Cab to End of Frame: – TBD –
  • Ground to Top of Load Floor: – TBD –
  • Ground to Top of Frame: – TBD –
  • Frame Width, Rear: – TBD –
  • Ground Clearance, Front: 10.88
  • Ground Clearance, Rear: 10.88
  • Cargo Box Length @ Floor: 69.92
  • Cargo Box Width @ Top, Rear: – TBD –
  • Cargo Box Width @ Floor: 71.4
  • Cargo Box Width @ Wheelhousings: 50.63
  • Cargo Box (Area) Height: 22.4
  • Tailgate Width: – TBD –
  • Cargo Volume: 62.9
  • Ext’d Cab Cargo Volume: – TBD –
  • Seventh Gear Ratio (:1): 1.00
  • Eighth Gear Ratio (:1): 0.85
  • Ninth Gear Ratio (:1): 0.69
  • Tenth Gear Ratio (:1): 0.63
  • Country of Origin: Mexico GMC Truck
  • Model Group: Sierra
  • Vehicle Segment: Large Pick-up
  • Vehicle Type: Crew Cab
  • Body Cab Style: Crew Cab
  • Bed Style: regular, regular composite
  • Engine Displacement Units: 3.0, 5.3, 5.3, 6.2
  • Engine Camshaft: DOHC, OHV, OHV, OHV
  • Engine Block Type: aluminum, aluminum, aluminum, aluminum
  • Engine Cylinder Count: 6, 8, 8, 8
  • Engine Valve Count: 2, 2, 2, 4

Special Ford Courtesy Vehicle

Ford Courtesy Vehicles are low mileage used vehicles that are eligible for New Vehicle Retail Incentive Offers and the balance of the New Vehicle Limited Warranty. These vehicles were formerly used by our customers and cared for by our very own service department.

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