Triangle Auto Sales · Elgin, IL

2021 GMC Sierra 1500 4x4 AT4

2021 GMC Sierra 1500 AT4

23,631 miles · truck

1 / 52 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2021

MakeGMC

ModelSierra 1500

TrimAT4 SB

VIN3GTP9EEL9MG199586

Stock number8715

Mileage23,631 miles

BodyPickup

EngineEcoTec3 6.2L V8 420hp 460ft. lbs.

Cylinders8

Displacement6.2L

Horsepower420

TransmissionAutomatic 10-Speed

Drivetrain4WD

FuelGasoline

MPG14 city / 19 hwy

ExteriorWhite

InteriorBlack

Vehicle description

2021 GMC Sierra AT4 6.2L V6 Engine 4 Wheel Drive ONLY 23K MILES Navigation System Backup Camera with 360 Vision Bose Audio System Wireless Charging Pad Headsup Display Rear View Mirror Camera Moonroof Power Sliding Rear Window Heated Steering Wheel Heated and Cooled Front Seats Heated Rear Seats Keyless Entry Remote Start Blind Spot Alerts Lane Keep Assist Front and Rear Parking Sensors Adaptive Cruise Control Tailgate Step Tonneau Cover Alloy Wheels California Truck No Rust!

Features & options (132)

Bumper Detail - Rear Integrated Corner Step
Exhaust - Dual Tip
Pickup Bed Light - Led
Pickup Bed Liner - Spray-On
Skid Plate(S) - Powertrain
Tailgate - Lift Assist
Tailgate - Multi-Function Split-Folding
Tailgate - Power Locking
Tailgate - Power Open
Tailgate - Removable
Tailgate - Step
Active Grille Shutters
Door Handle Color - Body-Color
Exhaust Tip Color - Polished Aluminum
Fender Lip Moldings - Black
Front Bumper Color - Body-Color
Grille Color - Black
Grille Color - Body-Color Surround
Mirror Color - Black
Rear Bumper Color - Body-Color
Skid Plate(S) - Front
Window Trim - Black
Air Filtration
Armrests - Rear Center With Cupholders
Armrests - Rear Folding
Floor Mat Material - Rubber/Vinyl
Floor Material - Carpet
Floor Mats - Front
Floor Mats - Rear
Front Air Conditioning - Automatic Climate Control
Front Air Conditioning Zones - Dual
Heated Steering Wheel
Rear Vents - Second Row
Steering Wheel Trim - Leather
Assist Handle - Front
Assist Handle - Rear
Capless Fuel Filler System
Center Console - Front Console With Armrest And Storage
Cruise Control
Cupholders - Front
Cupholders - Rear
Easy Entry - Power Driver Seat
Memorized Settings - 2 Driver
Memorized Settings - Driver Seat
Memorized Settings - Side Mirrors
Multi-Function Remote - Panic Alarm
Multi-Function Remote - Proximity Entry System
Multi-Function Remote - Vehicle And Key Memory
One-Touch Windows - 4
Power Outlet(S) - 115v Cargo Area
Power Outlet(S) - 115v Front
Power Outlet(S) - 12v Front
Power Outlet(S) - 12v Rear
Power Outlet(S) - Usb Front
Power Outlet(S) - Usb Rear
Power Steering
Power Windows - Lockout Button
Push-Button Start
Reading Lights - Front
Rearview Mirror - Auto-Dimming
Remote Engine Start
Steering Wheel - Tilt And Telescopic
Steering Wheel Mounted Controls - Audio
Steering Wheel Mounted Controls - Cruise Control
Steering Wheel Mounted Controls - Multi-Function
Steering Wheel Mounted Controls - Phone
Steering Wheel Mounted Controls - Voice Control
Storage - Door Pockets
Storage - Front Seatback
Storage - Under Rear Seats
Vanity Mirrors - Dual Illuminating
4wd Selector - Electronic Hi-Lo
4wd Type - Part Time W/ On Demand Setting
Front Brake Type - Ventilated Disc
Front Shock Type - Monotube
Front Spring Type - Coil
Front Struts
Front Suspension Type - Upper And Lower Control Arms
Hill Holder Control
Off-Road Driving Assist - Hill Descent
Pickup Bed Cargo Management - Tie-Down Anchors
Rear Brake Type - Ventilated Disc
Rear Shock Type - Monotube
Rear Spring Type - Leaf
Trailer Stability Control
Tuned Suspension - Off-Road
Abs - 4-Wheel
Axle Ratio - 3.23
Braking Assist
Drive Mode Selector
Electronic Brakeforce Distribution
Front Brake Diameter - 13.6
Front Brake Width - 1.18
Front Stabilizer Bar - Diameter 33 Mm
Front Suspension Classification - Independent
Locking Differential - Rear
Power Brakes
Rear Brake Diameter - 14.2
Rear Brake Width - 0.79
Rear Suspension Classification - Solid Live Axle
Rear Suspension Type - Multi-Leaf
Roll Stability Control
Stability Control
Tow Hooks - Front
Tow/Haul Mode
Traction Control
Trailer Brake Controller
Trailer Hitch
Trailer Wiring - 4-Pin
Trailer Wiring - 7-Pin
Alternator - 170 Amps
Auto Start/Stop
Battery - Heavy Duty
Battery - Maintenance-Free
Battery Rating - 730 Cca
Battery Saver
Connected In-Car Apps - App Marketplace Integration
Connected In-Car Apps - Google Pois
Connected In-Car Apps - Google Search
Driver Assistance App - Roadside Assistance
Electronic Messaging Assistance - Voice Operated
Gauge - Oil Pressure
Gauge - Tachometer
Hands-Free Phone Call Integration - Voice Operated
Infotainment - Gmc Infotainment System
Infotainment Screen Size - 8 In.
Instrument Cluster Screen Size - 4.2 In.
Powertrain Hour Meter
Radio - Voice Operated
Satellite Communications - Voice Guided Directions
Smart Device App Compatibility - Mygmc With Connected Access
Smart Device App Function - Mainte

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · nationwide

Asking price$41,995Dealer asking price · 23,631 mi

Market value$35,748Market value · based on 18 comparable cars

vs. market High price+17.5%High price · based on 18 comparable cars

Where this price sits

Among the highest-priced · 0% of 18 similar listings ask more than this car.

Market value $35,748

This car$41,995

$22,995lowest$41,995highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

High price$6,247 above the market value of $35,748

Price range

$22,995$41,995

19th lowest price of 19 similar listings nationwideTick marks the market value · range of 18 similar listings

AutosXchange Insights

Compared with 18 used 2021 GMC Sierra 1500 AT4 SB listings nationwide.
Priced $6,247 above the market value of 18 comparable cars — compare options, condition and history.
19th lowest price of 19 similar listings nationwide.
Has about 104,000 fewer miles than similar listings.
About 3,939 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # 8715 — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 6, 2026. No price change at this dealership since Nov 6 ($41,995).0 price changes at this dealership: $41,995 → $41,995.

AutosXchange Intel Hub: Price changes for this model in Illinois · This model in the Intel Hub · Market movers in Illinois

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 10); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2021 Sierra 1500 AT4 SB · used · any miles · nationwide. Showing the 12 nearest of 18 comparable cars for sale, nearest first.

21 photos

2021 GMC Sierra 1500 AT4 AT4 SB

$30,900est. $532/mo

$11,095 less than this car

138,824 mi
4WD
10-Speed Automatic
Diesel
Truck

Cruisin' Auto Sales · Madison, IN · 269 mi away

0 viewsStock # AX-MZ259741