STOCKMF285533
VIN1GT49PEY8MF285533
Used 2021 GMC Sierra 2500HD AT4 near Lynnwood, WA
- Was
- $55,995
- DL Price Today
- $55,995
Popular Features
Details
Vehicle Description
Premium Sound
Sat Radio
Apple CarPlay
Android Auto
Fog Lights
Heated Seat
Heated Steering Wheel
Navigation
Keyless Entry
Bluetooth
Cruise Control
Reverse Camera
Towing
Mileage
75,802
Trim
AT4
Stock #
MF285533
VIN
1GT49PEY8MF285533
Exterior Color
Onyx Black
Interior Color
Jet Black
Doors
4
Engine
Duramax 6.6L V8 Turbodiesel
Transmission
10-Speed Automatic
Drivetrain
4WD
If you're looking for a truck that doesn't just show up but takes over the job site, the campsite, and the left lane, say hello to this 2021 GMC Sierra 2500 AT4 Duramax. This is GMCs off-road ready heavy-duty flagship built for people who want premium comfort, serious capability, and the kind of…If you're looking for a truck that doesn't just show up but takes over the job site, the campsite, and the left lane, say hello to this 2021 GMC Sierra 2500 AT4 Duramax. This is GMCs off-road ready heavy-duty flagship built for people who want premium comfort, serious capability, and the kind of diesel power that makes towing feel like a warmup lap.
Under the hood lives the legendary 6.6L Duramax Turbo Diesel, paired with the smooth and tough Allison transmission - one of the most respected diesel powertrains on the road. Whether you're towing a fifth wheel, hauling equipment, or passing slower traffic with a smirk, the Duramax delivers the torque, strength, and confidence that only a diesel can.
Being an AT4, this truck isn't just powerful it's adventurous. It comes factory ready for the rough stuff with offroad suspension tuning, skid plates, Rancho shocks, and a stance that says "point me at the mountain and let's go." But step inside, and it's a completely different vibe: premium materials, sharp design, and comfort features that make long hauls feel like luxury cruises.
The 2021 AT4 strikes that perfect balance between rugged and refined. You get that aggressive offroad swagger on the outside, while inside youre wrapped in a cabin that feels more like a highend SUVonly with way more capability. Whether youre towing the toys, exploring the backroads, or showing up looking sharp for work, this truck does it all without breaking a sweat.
In short, this Sierra 2500 AT4 Duramax is the truck for someone who wants unstoppable performance, premium comfort, and the kind of presence that turns parking lots into admirers clubs.
Call us today 360-474-3276 dwaynelanechevrolet.com
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10-Speed Automatic, 4WD, Jet Black w/Kalahari Accents w/Perforated Leather-Appointed Front Seat Trim, 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), 2-Speed Active Transfer Case, 2nd Row Dual USB Charge-Only Ports, 4.2" Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, Bed View Camera w/2 Trailer Camera Provisions, Compass Located In Instrument Cluster, 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, Gooseneck/5th Wheel Package, Gooseneck/5th Wheel Prep Package, HD Rear Vision Camera, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Hill Descent Control, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel/Telescoping Steering Column, OnStar & GMC Connected Services Capable, Painted Black Surround Grille, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Rear Windows w/Express Down, Power Windows w/Driver Express Up/Down, Preferred Equipment Group 4SB, Rear Prem Floor Liners w/Removable Carpet Insert, Rear Wheelhouse Liners, Red Recovery Hooks, Remote Vehicle Starter System, Spray-On Pickup Box Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Unauthorized Entry Theft-Deterrent System, Wireless Phone Projection, X31 Off-Road Package.
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Dwayne Lane's Auto Family!!! We'll Take Care of You!(more)
Under the hood lives the legendary 6.6L Duramax Turbo Diesel, paired with the smooth and tough Allison transmission - one of the most respected diesel powertrains on the road. Whether you're towing a fifth wheel, hauling equipment, or passing slower traffic with a smirk, the Duramax delivers the torque, strength, and confidence that only a diesel can.
Being an AT4, this truck isn't just powerful it's adventurous. It comes factory ready for the rough stuff with offroad suspension tuning, skid plates, Rancho shocks, and a stance that says "point me at the mountain and let's go." But step inside, and it's a completely different vibe: premium materials, sharp design, and comfort features that make long hauls feel like luxury cruises.
The 2021 AT4 strikes that perfect balance between rugged and refined. You get that aggressive offroad swagger on the outside, while inside youre wrapped in a cabin that feels more like a highend SUVonly with way more capability. Whether youre towing the toys, exploring the backroads, or showing up looking sharp for work, this truck does it all without breaking a sweat.
In short, this Sierra 2500 AT4 Duramax is the truck for someone who wants unstoppable performance, premium comfort, and the kind of presence that turns parking lots into admirers clubs.
Call us today 360-474-3276 dwaynelanechevrolet.com
++++++++++++++++++++++++++++++++++++++++++++++++++++
10-Speed Automatic, 4WD, Jet Black w/Kalahari Accents w/Perforated Leather-Appointed Front Seat Trim, 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), 2-Speed Active Transfer Case, 2nd Row Dual USB Charge-Only Ports, 4.2" Diagonal Color Display Driver Info Center, 4G LTE Wi-Fi Hotspot Capable, Bed View Camera w/2 Trailer Camera Provisions, Compass Located In Instrument Cluster, 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, Gooseneck/5th Wheel Package, Gooseneck/5th Wheel Prep Package, HD Rear Vision Camera, Heated & Ventilated Front Bucket Seats, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Hill Descent Control, Integrated Trailer Brake Controller, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel/Telescoping Steering Column, OnStar & GMC Connected Services Capable, Painted Black Surround Grille, Power Door Locks, Power Front Passenger Windows w/Express Up/Down, Power Rear Windows w/Express Down, Power Windows w/Driver Express Up/Down, Preferred Equipment Group 4SB, Rear Prem Floor Liners w/Removable Carpet Insert, Rear Wheelhouse Liners, Red Recovery Hooks, Remote Vehicle Starter System, Spray-On Pickup Box Bed Liner w/AT4 Logo, Steering Wheel Audio Controls, Unauthorized Entry Theft-Deterrent System, Wireless Phone Projection, X31 Off-Road Package.
++++++++++++++++++++++++++++++++++++++++++++++++++++
Dwayne Lane's Auto Family!!! We'll Take Care of You!(more)
Vehicle Details
Features
Safety
Safety
Rearview monitor
in dash
Check rear seat reminder
Child safety door locks
Child seat anchors
LATCH system
Camera system
rearview
Programmable safety key
Airbags
Airbag deactivation
occupant sensing passenger
Side airbags
front
Front airbags
dual
Side curtain airbags
front, rear
Security
Anti-theft system
alarm, vehicle immobilizer
Power door locks
anti-lockout, auto-locking
Mirrors
Side mirrors
integrated turn signals, heated, auto-dimming
Side mirror adjustments
power, reverse gear tilt, power folding, power telescoping
Towing mirrors
Technology
Instrumentation
Warnings and reminders
low battery, lamp failure, low oil pressure, coolant temperature warning, low fuel level, maintenance due
Instrument cluster screen size
4.2 in.
Clock
Powertrain hour meter
Gauge
tachometer, oil pressure
Compass
Digital odometer
External temperature display
Multi-function display
Fuel economy display
MPG, range
Trip odometer
Audio System
Radio
voice operated, touch screen display, AM/FM, HD radio
Auxiliary audio input
Bluetooth, jack, USB, memory card slot, iPod/iPhone
Antenna type
diversity, mast
Total speakers
6
Radio data system
Speed sensitive volume control
Satellite radio
SiriusXM
Telematics
Electronic messaging assistance
with read function, voice operated
Satellite communications
voice guided directions, OnStar
Wi-Fi
hotspot
Driver assistance app
roadside assistance
Smart device app function
maintenance status
Smart device app compatibility
myGMC with Connected Access
Wireless data link
Bluetooth
Hands-free phone call integration
voice operated
In Car Entertainment
Connected in-car apps
app marketplace integration
Infotainment
GMC Infotainment System
Infotainment screen size
8 in.
Smartphone integration
wireless Apple CarPlay, wireless Android Auto
Exterior
Lights
Daytime running lights
LED
Front fog lights
LED
Taillights
LED
Exterior entry lights
puddle lamps, approach lamps
Headlights
LED, wiper activated, auto delay off, auto on/off
Exterior Features
Pickup bed light
LED
Tailgate
power locking, power open, multi-function split-folding, removable, lift assist, step
Bumper detail
rear integrated corner step
Mirror color
black
Front bumper color
body-color
Pickup bed liner
spray-on
Door handle color
body-color
Grille color
black
Skid plate(s)
front, rear
Exhaust tip color
stainless steel
Rear bumper color
body-color
Fender lip moldings
black
Hood scoop
Window trim
black
Tires and Rims
Tire type
all terrain
Spare tire mount location
underbody
Spare wheel type
steel
Tire Pressure Monitoring System
Wheel spokes
6
Spare tire size
full-size
Wheels
aluminum alloy with painted accents
Windows
Window defogger
rear
Front wipers
variable intermittent
Tinted glass
Power windows
safety reverse
Interior
Seats
Driver seat power adjustments
height, 10, lumbar, reclining
Passenger seat power adjustments
height, 10, lumbar, reclining
Driver seat
ventilated, heated
Passenger seat
heated, ventilated
Rear headrests
3, adjustable
Front headrests
2, adjustable
Front seat type
bucket
Rear seat type
60-40 split bench
Upholstery
leather-trimmed
Rear seat folding
folds up
Rear seat
heated
Upholstery accents
perforated
Seatbelts
Seatbelt pretensioners
front
Seatbelt warning sensor
front
Rear seatbelts
3-point
Front seatbelts
3-point
Emergency locking retractors
front
Mechanical
Stability and Traction
Off-road driving assist
hill descent
Stability control
Traction control
Hill holder control
Roll stability control
Trailer stability control
Brakes
Rear brake width
1.34
Front brake width
1.57
Rear brake type
ventilated disc
Rear brake diameter
14.2
Front brake diameter
14.0
Front brake type
ventilated disc
Braking assist
Electronic brakeforce distribution
ABS
4-wheel
Power brakes
Electronic parking brake
auto off
Drivetrain
4WD type
part time w/ on demand setting
4WD selector
electronic hi-lo
Axle ratio
3.73
Locking differential
rear
Suspension
Front suspension classification
independent
Rear suspension classification
solid live axle
Rear spring type
leaf
Front spring type
torsion bars
Tuned suspension
off-road
Rear suspension type
multi-leaf
Rear shock type
twin-tube gas
Front stabilizer bar
diameter 35 mm
Front suspension type
short and long arm
Front shock type
twin-tube gas
Towing and Hauling
Tow hooks
front
Tow/Haul mode
Pickup bed cargo management
tie-down anchors
Trailer hitch
Auxiliary transmission fluid cooler
Trailer wiring
4-pin, 7-pin
Trailer brake controller
Engine
Battery saver
Battery
heavy duty, maintenance-free
Auxiliary oil cooler
Alternator
170 amps
Battery rating
720 CCA
Comfort
Convenience Features
Power outlet(s)
USB front, USB rear, 115V cargo area, 12V rear, 12V front, 115V front
Cupholders
front, rear
Memorized settings
2 driver, driver seat, side mirrors
Steering wheel
tilt and telescopic
One-touch windows
4
Reading lights
front, rear
Power steering
variable/speed-proportional
Cruise control
Multi-function remote
panic alarm, proximity entry system
Power windows
lockout button
Overhead console
front
Steering wheel mounted controls
audio, cruise control, phone, multi-function, voice control
Push-button start
Vanity mirrors
dual illuminating
Assist handle
rear, front
Remote engine start
Center console
front console with armrest and storage
Rearview mirror
auto-dimming
Easy entry
power driver seat
Storage
front seatback, under rear seats, door pockets
Capless fuel filler system
Comfort Features
Floor mat material
carpet
Heated steering wheel
Center console trim
leather
Steering wheel trim
leather
Door trim
leather
Interior accents
metallic-tone
Armrests
rear folding, rear center with cupholders
Floor mats
rear, front
Floor material
carpet
Air Conditioning
Front air conditioning
automatic climate control
Front air conditioning zones
dual
Rear vents
second row
Air filtration
Specifications
Drive Type
Drive Type
4X4
4WD Hub Type
Pushbutton Hubs
Seating
Standard Seating
5
Max Seating
5
Head Room (front)
43 in
Head Room (rear)
39.9 in
Hip Room (front)
61.2 in
Hip Room (rear)
60.2 in
Shoulder Room (front)
66 in
Shoulder Room (rear)
65.3 in
Leg Room (front)
44.5 in
Leg Room (rear)
43.4 in
Seating Rows
2
Truck Specifications
Bed Length
82.2 in
Max Payload
3760 lbs
Measurements of Size & Shape
Length
250.1 in
Width
81.9 in
Width (without mirrors)
81.9 in
Height
79.8 in
Wheelbase
158.9 in
Ground Clearance
10.1 in
Track Width (front)
68.1 in
Track Width (rear)
68.3 in
Measurements of Weight
Gross Vehicle Weight Rating
10650 lbs
Gross Vehicle Weight Range
10001-14000 lbs
Curb Weight
6852 lbs
Gross Combined Weight Rating
24000 lbs
Base Towing Capacity
14500 lbs
Max Towing Capacity
18500 lbs
Performance Specifications
Turning Circle
52.7 ft
Fuel Tanks
Fuel Capacity
36.0 Gallons
Wheels and Tires
Front Tire Type
LT275/70R18E
Front Wheel Diameter
18.0 x 8.0 in
Rear Tire Type
LT275/70R18E
Rear Wheel Diameter
18.0 x 8.0 in
Testimonials
Riley was HANDS DOWN THE BEST!! She heard everything we wanted and matched it and went beyond. There was no hassle, we got what we wanted for the amount we had. They have great warranties to guarantee the car!!! She knew what she was talking about. It...
R
Rachel Morris
This is our second time leasing through Dwayne Lane and it is always such a pleasure working with them. Riley made the purchase process transparent and smooth. All the numbers were worked out online and we were in and out of the dealership with my new...
M
Mindy Dolan
Came In to get a oil change, it was going to be a few hours because they were short handed. A lot of people were waiting. The prices went up on the oil change because of the riseing gas prices with everything else, but I was told they would honor the...
S
SUSAN MOCK
Dealership Information
Sales
Monday9:00am - 7:00pm
Tuesday9:00am - 7:00pm
Wednesday9:00am - 7:00pm
Thursday9:00am - 7:00pm
Friday9:00am - 7:00pm
Saturday9:00am - 7:00pm
Sunday10:00am - 6:00pm
Service
Monday7:30am - 6:00pm
Tuesday7:30am - 6:00pm
Wednesday7:30am - 6:00pm
Thursday7:30am - 6:00pm
Friday7:30am - 6:00pm
Saturday8:00am - 5:00pm
SundayClosed
Parts
Monday7:30am - 6:00pm
Tuesday7:30am - 6:00pm
Wednesday7:30am - 6:00pm
Thursday7:30am - 6:00pm
Friday7:30am - 6:00pm
Saturday8:00am - 5:00pm
SundayClosed
Disclaimer
All vehicles are one of each. All vehicles subject to availability, no sale is binding until finalized in a written purchase order with the dealer. All Pre-Owned or certified vehicles are used. A negotiable documentary service fee of up to $200 may be added to the sale price or capitalized cost. All financing is subject to credit approval. DL Market Adjustment is available to everyone. Prices exclude tax, title, license, and shipping. Please consider verifying any information in question with a dealership sales representative. MSRP is Manufacturer’s Suggested Retail Price, it is not our sale price, The Net MSRP after rebates is not an advertised price and both are used for comparison purposes only. The offering price of this vehicle is conditioned on a negotiated waiver of implied warranties if the Buyers Guide on the vehicle is AS IS-NO DEALER WARRANTY. If the Buyers Guide on the vehicle is IMPLIED WARRANTIES ONLY, the offer includes implied warranties of merchantability. Call Dealer to determine form of Buyers Guide on the vehicle. MPG is based on EPA estimates for newly manufactured vehicles only. Actual rating will vary with driving conditions, habits, and vehicle condition. Pricing provided may vary significantly between website and dealer as a result of supply chain constraints. Pricing shown is non-binding and does not constitute an offer. Offer valid for Washington State residents only. To qualify for any advertised discounts, rebates, or special offers, proof of residency may be required at the time of purchase or lease. Discounts and rebates are subject to change without notice and may vary based on the vehicle model, availability, and other conditions. Offer cannot be combined with other promotions, offers, or incentives unless otherwise stated. Contact your dealer for updated vehicle pricing.
*Discount pricing may be subject to financing agreement with Stellantis Financial Services. Limited to in-stock vehicles only. Subject to credit approval. Not all customers will qualify. Select incentives may not be combined with other offers or discount pricing. See dealer for details
All sale prices expire at 03/6/2026