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Home / Pre-Owned Inventory / Used / 2026 / GMC / Sierra 1500 / AT4 / 3GTUUEE86TG173720
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Used 2026 GMC Sierra 1500 AT4

VIN: 3GTUUEE86TG173720
Stock #: TG173720U

16,764 mi.

Vehicle Details

MPG:22/26 (City/Hwy)
Trans.:10-Speed Automatic
Drivetrain:Four Wheel Drive
Engine:
Turbocharged Diesel I6 3.0L/
Fuel Type:Diesel
Ext. Color:Volcanic Red Tintcoat
Int. Color:Jet Black with Kalahari accents
Klement Price
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Description

Experience the pinnacle of power and luxury with this 2026 GMC Sierra 1500 4×4 AT4 Crew Cab. Built for adventure, the AT4 trim delivers off-road capability with an off-road tuned suspension, powertrain and front skid plates, and hill descent control. Under the hood, the Duramax 3.0L Turbo Diesel I6 delivers 305hp and 495 lb-ft of torque, paired with a 10-speed shiftable automatic transmission and electronic 4WD selector for smooth, responsive performance. Enjoy high-end features like the AT4 Premium & Preferred Packages, black badging package, MultiPro audio by Kicker, surround view camera, spray-on Bed liner, trailer brake controller, and step tailgate. Inside, indulge in ventilated and heated leather-trimmed seats, a 13.4-inch infotainment display with Google Built-In, wireless Apple CarPlay/Android Auto, Bose premium sound, and a customizable 12.3-inch digital instrument cluster. Advanced safety features include adaptive cruise control, lane keep assist, blind spot monitoring with trailer coverage, rear cross traffic alert, and front/rear automatic emergency braking. Ready for work, play, and everything in between, this Sierra AT4 blends rugged capability with modern tech and comfort.We are a long-standing family automotive dealership located in Decatur, Tx. offering New and used vehicle sales, financing and specialized service center. Serving our local community for over 3 DECADES! Where HONESTY & TRANSPARENCY is what you will find here at KARL KLEMENT FORD. You won’t find the big city pushy sales here, only small town, How may we help you? So come on out and see us at KARL KLEMENT FORD!Price includes: $225 – Doc Fee

Standard Features

  • Bumper, front, body-color lower
  • Bumper, rear body-color with corner steps
  • CornerStep, rear bumper
  • Door handles, body-color
  • Fog lamps, LED
  • Glass, deep-tinted
  • Headlamps, LED projectors with Fade-on/Fade-off animation, LED turn signals and Daytime Running Lamps
  • IntelliBeam, automatic high beam on/off (Included and only available with (PDI) GMC Pro Safety.)
  • Lamps, cargo area, Cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • LED Cargo Area Lighting located in cargo Bed activated with switch on center switch bank or key fob
  • Lighting, perimeter
  • Mirror caps, high gloss Black
  • Mirrors, outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memory
  • Tailgate and Bed rail protection caps, top
  • Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
  • Tailgate, GMC MultiPro Tailgate with six functional load/access features
  • Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
  • Tires, 275/60R20SL all-terrain, blackwall
  • Wheel, 17″ x 8″ (43.2 cm x 20.3 cm) full-size, steel spare
  • Wipers, front rain-sensing
  • Adaptive Cruise Control
  • Air conditioning, dual-zone automatic climate control
  • Air vents, rear
  • Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
  • Audio System, 13.4″ diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance, includes color touch-screen, multi-touch display, AM/FM stereo BluetoothĀ® streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones
  • BluetoothĀ® for phone, connectivity to vehicle infotainment system
  • Bose Sound System, premium 7-speaker system with Richbass woofer
  • Center Console, floor-mounted with Cup holders, cell phone storage, power cord management, hanging file folder capability
  • Compass, located in instrument cluster
  • Defogger, rear-window electric
  • Door locks, power
  • Driver Information Center, enhanced, 12.3″ diagonal reconfigurable multicolor digital display
  • Driver memory recalls driver “presets” for power driver seat and outside mirrors
  • Exterior Temperature Display, located in radio display
  • Floor covering, color-keyed carpeting
  • GMC Premium information Display- 13.4″ diagonal Multicolor touch screen
  • Keyless Open and Start includes remote keyless entry
  • Mirror, inside rearview auto-dimming
  • Power outlet, Bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)
  • Power outlet, interior power outlet, 120-volt (400 watts shared with (KC9) Bed mounted power outlet)
  • Premium Floor Liners with removable carpet insert, front
  • Premium Floor Liners with removable carpet insert, rear
  • Remote vehicle starter system
  • Seat adjuster, driver 10-way power including lumbar
  • Seat adjuster, passenger 10-way power including lumbar
  • Seat, Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full Cab width under-seat storage, (includes child seat top tether anchor)
  • Seating, heated driver and front outboard passenger
  • Seats, front bucket with center console
  • Seats, heated second Row outboard seats
  • Seats, ventilated driver and front passenger
  • SiriusXM Trial Subscription
  • SiriusXM with 360L Trial Subscription. SiriusXM with 360L transforms your customers’ ride with our most extensive and personalized radio experience on the road. (IMPORTANT: The SiriusXM trial subscription is not provided on vehicles that are ordered for Fleet Daily Rental (“FDR”) use. Trial subscription is subject to the SiriusXM Customer Agreement and privacy policy, visit siriusxm.com which includes full terms and how to cancel. All fees, content, features, and availability are subject to change. Some features require GM connected vehicle services.)
  • Steering column lock, electrical
  • Steering wheel audio controls
  • Steering wheel, heated
  • Steering wheel, wrapped
  • Theft-deterrent system, unauthorized entry
  • USB ports, (2) charge-only, rear
  • USB Ports, 2 (first Row) located on console
  • USB Ports, 2, Charge/Data ports located inside center console
  • Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Window, power front, passenger express up/down
  • Windows, power front, drivers express up/down
  • Windows, power rear, express down
  • Wireless Charging
  • Wireless, Apple CarPlay / Wireless Android Auto
  • Air filter, heavy-duty
  • Auto-locking rear differential
  • Automatic Stop/Start
  • Brake lining wear indicator
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • Capless Fuel Fill
  • Cargo tie downs (12), fixed
  • Engine, Duramax 3.0L Turbo-Diesel I6 (305 hp [227 kW] @ 3750 rpm, 495 lb-ft of torque [671 Nm] @ 2750 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.)
  • Exhaust, aluminized stainless-steel muffler and tailpipe
  • Four wheel drive
  • Frame, fully-boxed, hydroformed front section
  • Hill Descent Control
  • Pickup Bed
  • Push Button Start
  • Rear axle, 3.23 ratio
  • Recovery hooks, Red
  • Skid Plates
  • Steering, Electric Power Steering (EPS) assist, rack-and-pinion
  • Suspension, Off-Road with 2″ factory installed lift and monotube shocks
  • Trailer brake controller, integrated
  • Transfer case, Two-speed, electronic Autotrac with push button control (4WD models only)
  • Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner’s Manual for more information.)
  • Automatic Emergency Braking (Included and only available with (PDI) GMC Pro Safety.)
  • Daytime Running Lamps, LED signature lighting
  • Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
  • Forward Collision Alert (Included and only available with (PDI) GMC Pro Safety.)
  • Front and Rear Park Assist, ultrasonic
  • Front Pedestrian Braking (Included and only available with (PDI) GMC Pro Safety.)
  • HD Surround Vision provides the driver with an overhead view of the scene around the vehicle on a center stack display. Includes front camera washer.
  • Hitch Guidance
  • Lane Keep Assist with Lane Departure Warning (Included and only available with (PDI) GMC Pro Safety.)
  • OnStar Equipped (subscription required)
  • OnStar services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
  • Rear Cross Traffic Braking
  • Rear Pedestrian Alert
  • Rear Seat Belt Indicator
  • Rear Seat Reminder
  • Seat Belt Adjustable Guide Loops, front Row only
  • StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
  • Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
  • Trailer Camera Provisions and trailer viewing software
  • Trailer Side Blind Zone Alert

Vehicle Location

Karl Klement Ford
2670 South Highway 287
Decatur, TX 76234

Vehicle Data

Certain specifications, prices and equipment data have been provided under license from Chrome Data Solutions (\’Chrome Data\’) . Ā© 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 MPG and driving range will vary depending on driving conditions, how you drive and maintain your vehicle, and other factors.

PRICING
* MSRP is the Manufacturer’s Suggested Retail Price (MSRP) of the vehicle. It does not include any taxes, fees or other charges. The price shown includes the $225 doc fee. Pricing and availability may vary based on a variety of factors, including options, specials, fees, and financing qualifications..Ā Vehicle pricing is believed to be accurate. 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.

* You may not qualify for the offers, incentives, discounts, or financing. Offers, incentives, discounts, or financing are subject to expiration and other restrictions. See dealer for qualifications and complete details.

* Images, prices, and options shown, including vehicle color, trim, options, pricing and other specifications are subject to availability, incentive offerings, current pricing and credit worthiness.

* In transit means that vehicles have been built, but have not yet arrived at your dealer. Images shown may not necessarily represent identical vehicles in transit to your dealership. See your dealer for actual price, payments and complete details.

* ā€œDealer Discountā€ includes Dealer Specific Incentives, see Dealer for complete details on Dealer Specific Incentives.

* The advertised price does not include sales tax, vehicle registration fees, other fees required by law, finance charges and any documentation charges. A negotiable administration fee, up to $225, may be added to the price of the vehicle..

*Number of views in last 30 days

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: 2845
  • Curb Weight – Rear: 1981
  • EPA Greenhouse Gas Score: 4
  • Gross Vehicle Weight Rating Cap: 7100, 7200
  • Fuel Economy Est-Combined: 23, 24
  • EPA Fuel Economy Est – City: 21, 22
  • EPA Fuel Economy Est – Hwy: 24, 26
  • 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.: 8700, 8800
  • Wt Distributing Hitch – Max Tongue Wt.: 870, 880
  • Fifth Wheel Hitch – Max Trailer Wt.: 6700
  • Fifth Wheel Hitch – Max Tongue Wt.: 1675
  • Maximum Trailering Capacity: 9000
  • Engine Order Code: LZ0
  • Engine Type: Turbocharged Diesel I6
  • Displacement: 3.0L/- TBD –
  • Fuel System: Direct Injection
  • SAE Net Horsepower @ RPM: 305 @ 3750
  • SAE Net Torque @ RPM: 495 @ 2750
  • Trans Order Code: MHS, MQC
  • Trans Type: 10
  • Trans Description Cont.: Automatic
  • Trans Description Cont. Again:
  • First Gear Ratio (:1): 4.70
  • Second Gear Ratio (:1): 2.99
  • Third Gear Ratio (:1): 2.15
  • Fourth Gear Ratio (:1): 1.77
  • Fifth Gear Ratio (:1): 1.52
  • Sixth Gear Ratio (:1): 1.28
  • Reverse Ratio (:1): 4.87
  • Clutch Size:
  • Trans Power Take Off:
  • Trans PTO Access:
  • Transfer Case Model: – TBD –
  • Transfer Case Gear Ratio (:1), High: – TBD –
  • Transfer Case Gear Ratio (:1), Low: – TBD –
  • Transfer Case Power Take Off:
  • Cold Cranking Amps @ 0° F (Primary): 850
  • Cold Cranking Amps @ 0° F (2nd):
  • Tons/yr of CO2 Emissions @ 15K mi/year: 8.6, 9
  • Maximum Alternator Capacity (amps): 170, 220
  • Maximum Alternator Watts:
  • Total Cooling System Capacity: – TBD –
  • Engine Oil Cooler:
  • 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: – TBD –
  • Shock Absorber Diameter – Rear: – TBD –
  • Stabilizer Bar Diameter – Front: 1.30
  • Stabilizer Bar Diameter – Rear:
  • Front Tire Order Code: QAE, QFV, R3O
  • Rear Tire Order Code: QAE, QFV, R3O
  • Spare Tire Order Code: QAQ, XCQ
  • Front Tire Size: 275/60R20SL, LT265/60R20, LT275/65R18C
  • Rear Tire Size: 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: N/A
  • Revolutions/Mile @ 45 mph – Rear: N/A
  • Revolutions/Mile @ 45 mph – Spare: N/A
  • Front Wheel Size: 18 x 8.5, 20 x 9
  • Rear Wheel Size: 18 x 8.5, 20 x 9
  • Spare Wheel Size: 17 x 8
  • 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: 47.3
  • Turning Diameter – Wall to Wall: N/A
  • 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 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: 64.54
  • Front Hip Room: 60.78
  • Second Head Room: 40.12
  • Second Leg Room: 43.4
  • Second Shoulder Room: 64
  • Second Hip Room: 59.24
  • Wheelbase: 147.55
  • Length, Overall: 232.9
  • 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: 11.1
  • Ground Clearance, Rear: 11.1
  • 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): 0.64
  • 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, 3.0, 6.2
  • Engine Camshaft: DOHC, DOHC, OHV
  • Engine Block Type: aluminum, aluminum, aluminum
  • Engine Cylinder Count: 6, 6, 8
  • Engine Valve Count: 2, 4, 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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