Vehicle Details

2021 GMC Sierra 1500 AT4

Pre-Owned
Stock #: 25631A    VIN: 3GTU9EET9MG457494
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BASIC INFO
  • Condition Pre-Owned
  • Year 2021
  • Make GMC
  • Model Sierra 1500
  • Trim Level AT4
  • Engine 3.0L I6
  • Transmission 10-Speed Automatic
  • Body Style 4D Crew Cab
  • Exterior Color Summit White
  • Interior Color Jet Black With Kalahari Accents Leather
  • Mileage 85,101
  • Fuel Economy 22 City / 26 Highway
  • Price Call
DEALER COMMENTS
Locally owned 2021 GMC Sierra 1500 AT4 with 85,000 miles. This one’s built the way AT4 buyers want them — factory lift, real off-road hardware, and the Duramax diesel for torque, efficiency, and long-haul reliability. It’s been well cared for and set up for work, towing, or weekend adventures without being overdone.

Key Features & Highlights:
• 3.0L Duramax Turbo-Diesel engine
• 4WD with 2-speed AutoTrac transfer case
• AT4 off-road package with factory 2'' lift
• X31 off-road suspension, skid plates & hill descent control
• Trailer brake controller & ProGrade trailering system
• GMC MultiPro tailgate
• Spray-on bedliner with AT4 logo
• Heated steering wheel & ventilated front seats
• Dual-zone automatic climate control
• 8'' touchscreen with wireless Apple CarPlay® & Android Auto™
• HD rear vision camera

Condition & Value:
• Locally owned truck
• Strong miles for a Duramax AT4
• Fully inspected and reconditioned
• Excellent balance of capability, comfort, and durability
• Ideal for towing, job sites, or Pacific Northwest terrain

Sunset Chevrolet, 603 Harrison St in Sumner, part of the Sunset Auto Family.
The exclusive home of Warranty Protection for Life — a limited Powertrain Warranty that’s honored at any ASE-certified repair facility in the U.S. and Canada. Available on all qualifying new and pre-owned vehicles for as long as you own it.
  • Equipment & Features
  • Preferred Equipment Group 4SB
  • Trailering Package
  • 6 Speakers
  • 6-Speaker Audio System Feature
  • AM/FM radio: SiriusXM with 360L
  • Not Equipped w/HD Radio
  • Premium audio system: GMC Infotainment System
  • Radio data system
  • Radio: Premium GMC Infotainment Sys w/Multi-Touch
  • SiriusXM w/360L
  • Steering Wheel Audio Controls
  • Air Conditioning
  • Automatic temperature control
  • Electric Rear-Window Defogger
  • Front dual zone A/C
  • Rear window defroster
  • 12-Volt Rear Auxiliary Power Outlet
  • 120-Volt Bed Mounted Power Outlet
  • 120-Volt Instrument Panel Power Outlet
  • Driver Memory
  • Memory seat
  • Power driver seat
  • Power Front Passenger Windows w/Express Up/Down
  • Power Front Windows w/Driver Express Up/Down
  • Power Rear Windows w/Express Down
  • Power steering
  • Power windows
  • Remote keyless entry
  • Remote Vehicle Starter System
  • Steering wheel mounted audio controls
  • Auto-Locking Rear Differential
  • Electrical Lock Control Steering Column
  • Manual Tilt-Wheel & Telescoping Steering Column
  • Off-Road Suspension
  • Speed-sensing steering
  • Traction control
  • 4-Wheel Disc Brakes
  • ABS brakes
  • Dual front impact airbags
  • Dual front side impact airbags
  • Front anti-roll bar
  • Front wheel independent suspension
  • Keyless Open & Start
  • Low tire pressure warning
  • Occupant sensing airbag
  • Overhead airbag
  • Power Door Locks
  • Brake assist
  • Electronic Stability Control
  • Hill Descent Control
  • Delay-off headlights
  • Front fog lights
  • Fully automatic headlights
  • Panic alarm
  • Security system
  • Theft Deterrent System (Unauthorized Entry)
  • Speed control
  • 170 Amp Alternator
  • 220 Amp Alternator
  • Auxiliary External Transmission Oil Cooler
  • Engine Block Heater
  • Heavy-Duty Air Filter
  • AT4 High Clearance Step (LPO)
  • Auto-dimming door mirrors
  • Body-Color Surround Grille
  • Bumpers: body-color
  • Front License Plate Kit
  • Heated door mirrors
  • LED Cargo Area Lighting
  • Power door mirrors
  • ProGrade Trailering System
  • Rear step bumper
  • Rear Wheelhouse Liners
  • Spray-On Pickup Bed Liner w/AT4 Logo
  • 2 USB Ports
  • 2 USB Ports (1st Row)
  • 4.2 Diagonal Color Display Driver Info Center
  • 4G LTE Wi-Fi Hotspot Capable
  • Apple CarPlay/Android Auto
  • Auto-dimming Rear-View mirror
  • Color-Keyed Carpeting Floor Covering
  • Compass
  • Driver door bin
  • Driver vanity mirror
  • Floor-Mounted Center Console
  • Front Prem Floor Liners w/Removable Carpet Insert
  • Front reading lights
  • GMC Connected Access Capable
  • HD Rear Vision Camera
  • Heated steering wheel
  • Illuminated entry
  • Not Equipped w/Heated 2nd Row Outboard Seats
  • OnStar & GMC Connected Services Capable
  • Outside temperature display
  • Overhead console
  • Passenger vanity mirror
  • Rear Dual USB Charging-Only Ports
  • Rear Prem Floor Liners w/Removable Carpet Insert
  • Rear reading lights
  • Rear seat center armrest
  • Tachometer
  • Telescoping steering wheel
  • Tilt steering wheel
  • Trip computer
  • Voltmeter
  • 10-Way Power Driver Seat Adjuster w/Lumbar
  • 10-Way Power Passenger Seat Adjuster w/Lumbar
  • Front Bucket Seats
  • Front Center Armrest
  • Heated Driver & Front Outboard Passenger Seating
  • Heated front seats
  • Perforated Leather-Appointed Front Seat Trim
  • Power passenger seat
  • Split folding rear seat
  • Ventilated Driver & Front Passenger Seats
  • Ventilated front seats
  • Passenger door bin
  • Hitch Guidance
  • Hitch Guidance w/Hitch View
  • In-Vehicle Trailering App
  • Integrated Trailer Brake Controller
  • Red Recovery Hooks
  • 18 x 8.5 Machined Aluminum Wheels
  • Alloy wheels
  • Wheels: 20 x 9 Machined Aluminum
  • Deep-Tinted Glass
  • Variably intermittent wipers
  • 3.23 Rear Axle Ratio
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Sunset Mitsubishi / Kia makes no representations, expressed or implied, to any actual or prospective purchaser or owner of this vehicle as to the existence, ownership, accuracy, description or condition of the listed vehicle's equipment, accessories, price or any warranties. Any and all differences must be addressed prior to the sale of this vehicle. Vehicle pricing and availability subject to change without notice. All Pricing expires at midnight 01/11/2026. The price for listed vehicles as equipped does not include charges such as: Government fees and/or state or local taxes, license fee, registration fee, dealer documentary fee, finance charges, emissions testing fees, compliance fees, credit investigation, credit insurance, physical damage of liability insurance or delivery fees. WalkTheLot.com is not responsible for typographical or other possible errors. Please confirm all displayed data with the dealership.
LOCATION
Sunset Mitsubishi / Kia
910 Trafic Ave
Sumner, WA. 98390
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(253) 939-4507

Contact: Brian Michael

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https://walkthelot.com/inventory/detail/?aid=2027&did=2591&vin=3GTU9EET9MG457494
Printed 01/10/2026 4:24 AM Eastern
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