Marty's GMC · kingston, MA

2021 GMC Sierra 1500 SLT

47,490 miles · truck

1 / 32 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2021

MakeGMC

ModelSierra 1500

TrimSLT

VIN1GTU9DED1MZ134916

Stock number261002A

Mileage47,490 miles

BodyPickup

Engine5.3L 8-cyl

Cylinders8

Displacement5.3L

Transmission10-Speed Automatic

Drivetrain4WD

FuelGasoline

ExteriorSteel Metallic

InteriorJet Black

Vehicle description

2021 GMC Sierra 1500 SLT 4D Crew Cab 4WD EcoTec3 5.3L V8 10-Speed Automatic *EXCELLENT Service History!*, 10-Speed Automatic, 4WD, Jet Black Leather, 10-Way Power Driver Seat Adjuster w/Lumbar, 10-Way Power Passenger Seat Adjuster w/Lumbar, 12-Volt Rear Auxiliary Power Outlet, 120-Volt Instrument Panel Power Outlet, 170 Amp Alternator, 2 USB Ports, 2 USB Ports (1st Row), 20 x 9 Polished Aluminum Wheels, 4G LTE Wi-Fi Hotspot Capable, Adaptive Cruise Control, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto-Locking Rear Differential, Automatic Emergency Braking, Auxiliary External Transmission Oil Cooler, Chrome Grille, Chrome Wheel To Wheel Assist Steps, Color-Keyed Carpeting Floor Covering, Compass, Deep-Tinted Glass, Driver Alert Package I, Driver Alert Package II, Driver Memory, Electric Rear-Window Defogger, Electrical Lock Control Steering Column, Floor-Mounted Center Console, Following Distance Indicator, Forward Collision Alert, Front 40/20/40 Split-Bench Seat, Front Bucket Seats, Front Frame-Mounted Black Recovery Hooks, Front Pedestrian Braking, Front reading lights, GMC Connected Access Capable, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seating, Heated steering wheel, Heavy Duty Suspension, Illuminated entry, Integrated Trailer Brake Controller, IntelliBeam Automatic High Beam On/Off, Keyless Open & Start, Lane Change Alert w/Side Blind Zone Alert, Lane Keep Assist w/Lane Departure Warning, LED Cargo Area Lighting, Manual Tilt-Wheel & Telescoping Steering Column, OnStar & GMC Connected Services Capable, Perimeter Lighting, 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, Power Sliding Rear Window w/Rear Defogger, Power steering, Preferred Equipment Group 4SA, Premium Bose 7-Speaker Sound System, ProGrade Trailering System, Radio: Premium GMC Infotainment Sys w/Navigation, Rear Cross Traffic Alert, Rear Dual USB Charging-Only Ports, Rear Wheelhouse Liners, Rear window defroster, Remote Vehicle Starter System, Safety Alert Seat, SiriusXM w/360L, SLT Convenience Package, SLT Preferred Package, SLT Premium Plus Package, Spray-On Pickup Bed Liner w/GMC Logo, Steering Wheel Audio Controls, Telescoping steering wheel, Theft Deterrent System (Unauthorized Entry), Tilt steering wheel, Trailering Package, Ultrasonic Front & Rear Park Assist, Universal Home Remote, Ventilated Driver & Front Passenger Seats, Wireless Charging. CARFAX One-Owner. Visit Marty’s GMC in Kingston, MA to confirm availability and schedule your test drive today. Ask about current GMC incentives, lease programs, and trade-in assistance available on this 2021 GMC Sierra 1500. Our team is committed to transparent pricing, competitive financing options, and a straightforward, hassle-free buying experience. Proudly serving Kingston, Plymouth, Duxbury, and the entire South Shore for OVER 70 Year!

Features & options (162)

Adaptive Cruise Control
Bluetooth®
Heated Steering Wheel
Remote Start
4WD/AWD
Android Auto
Apple CarPlay
Heated Seats
Keyless Entry
Leather Seats
Wi-Fi Hotspot
Automatic High Beams
Emergency Brake Assist
Lane Departure Warning
Lane Keep Assist
Wireless Phone Charging
Blind Spot Monitor
Forward Collision Warning
Navigation System
Parking Assistance
Rear View Camera
Alloy Wheels
Driver Alert Package I
Driver Alert Package II
Preferred Equipment Group 4SA
SLT Convenience Package
SLT Preferred Package
SLT Premium Plus Package
Trailering Package
6 Speakers
6-Speaker Audio System Feature
AM/FM radio: SiriusXM with 360L
Premium audio system: GMC Infotainment System
Premium Bose 7-Speaker Sound System
Radio data system
Radio: Premium GMC Infotainment Sys w/Multi-Touch
Radio: Premium GMC Infotainment Sys w/Navigation
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
Universal Home Remote
Auto-Locking Rear Differential
Electrical Lock Control Steering Column
Heavy Duty Suspension
Manual Tilt-Wheel & Telescoping Steering Column
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
Delay-off headlights
Front fog lights
Fully automatic headlights
Perimeter Lighting
Panic alarm
Security system
Theft Deterrent System (Unauthorized Entry)
Speed control
170 Amp Alternator
Auxiliary External Transmission Oil Cooler
Auto-dimming door mirrors
Bumpers: chrome
Chrome Grille
Chrome Wheel To Wheel Assist Steps
Front License Plate Kit
Heated door mirrors
IntelliBeam Automatic High Beam On/Off
LED Cargo Area Lighting
Power door mirrors
ProGrade Trailering System
Rear step bumper
Rear Wheelhouse Liners
Spray-On Pickup Bed Liner w/GMC Logo
2 USB Ports
2 USB Ports (1st Row)
4G LTE Wi-Fi Hotspot Capable
Apple CarPlay/Android Auto
Auto-dimming Rear-View mirror
Automatic Emergency Braking
Color-Keyed Carpeting Floor Covering
Compass
Driver door bin
Driver vanity mirror
Floor-Mounted Center Console
Following Distance Indicator
Forward Collision Alert
Front Pedestrian Braking
Front reading lights
GMC Connected Access Capable
Illuminated entry
Lane Change Alert w/Side Blind Zone Alert
Lane Keep Assist w/Lane Departure Warning
OnStar & GMC Connected Services Capable
Outside temperature display
Overhead console
Passenger vanity mirror
Rear Cross Traffic Alert
Rear Dual USB Charging-Only Ports
Rear reading lights
Rear seat center armrest
Safety Alert Seat
Tachometer
Telescoping steering wheel
Tilt steering wheel
Trip computer
Ultrasonic Front & Rear Park Assist
Voltmeter
Wireless Charging
10-Way Power Driver Seat Adjuster w/Lumbar
10-Way Power Passenger Seat Adjuster w/Lumbar
Front 40/20/40 Split-Bench Seat
Front Bucket Seats
Heated 2nd Row Outboard Seats
Heated Driver & Front Outboard Passenger Seating
Heated front seats
Perf Leather-Appointed Front Outboard Seat Trim
Power passenger seat
Split folding rear seat
Ventilated Driver & Front Passenger Seats
Front Center Armrest w/Storage
Passenger door bin
Front Frame-Mounted Black Recovery Hooks
Hitch Guidance
Hitch Guidance w/Hitch View
In-Vehicle Trailering App
Integrated Trailer Brake Controller
20" x 9" Polished Aluminum Wheels
Wheels: 18" x 8.5" 6-Spoke Machined Aluminum
Deep-Tinted Glass
Power Sliding Rear Window w/Rear Defogger
Variably intermittent wipers
3.23 Rear Axle Ratio
EXCELLENT Service History!*
Non-Smoker*

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

AutosXchange Intel

Vehicle price analysis

Live listings · within 50 miles of Kingston, Massachusetts

Asking price$39,095Dealer asking price · 47,490 mi

Market value$33,014Market value · based on 4 comparable cars

vs. market High price+18.4%High price · based on 4 comparable cars

Where this price sits

Among the highest-priced · 0% of 4 similar listings ask more than this car.

Market value $33,014

This car$39,095

$22,998lowest$39,095highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

High price$6,081 above the market value of $33,014

Price range

$22,998$39,095

5th lowest price of 5 similar listings within 50 milesTick marks the market value · range of 4 similar listings

AutosXchange Insights

Compared with 4 used 2020–2021 GMC Sierra 1500 SLT listings within 50 mi.
Priced $6,081 above the market value of 4 comparable cars — compare options, condition and history.
5th lowest price of 5 similar listings within 50 miles.
Has about 40,000 fewer miles than similar listings.
About 7,915 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # 261002A — 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 8, 2026. No price change at this dealership since Nov 8 ($39,095).

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); 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 2020–2021 Sierra 1500 SLT · used · any miles · within 50 miles of Kingston, Massachusetts. All 4 comparable cars for sale, nearest first.

2021 GMC Sierra 1500 SLT for sale at Chrysler Jeep Dodge Ram 24 in Brockton, MA

Price drop −$436

36 photosCARFAX

2021 GMC Sierra 1500 SLT

$31,244~~$31,680~~est. $538/mo

$7,851 less than this car

87,716 mi
4WD
10-Speed Automatic
Gasoline
Truck

Chrysler Jeep Dodge Ram 24 · Brockton, MA · 17 mi away

0 viewsStock # TP7571

Check availability Call

2020 GMC Sierra 1500 SLT for sale at Classic Auto Sales in Holliston, MA

Great deal

62 photosCARFAX

2020 GMC Sierra 1500 SLT

$22,998est. $396/mo

$16,097 less than this car

155,812 mi
4WD
8-Speed Automatic
Truck

Classic Auto Sales · Holliston, MA · 39 mi away

0 viewsStock # LG178143

Check availability Call

38 photosCARFAX

2020 GMC Sierra 1500 SLT

$35,872est. $618/mo

$3,223 less than this car

54,595 mi
4WD
Automatic
Gasoline
Truck

IMPERIAL CHEVROLET · Mendon, MA · 42 mi away

0 viewsStock # 48904A

Check availability Call

33 photosCARFAX

2020 GMC Sierra 1500 SLT

$34,784est. $599/mo

$4,311 less than this car

72,433 mi
4WD
Automatic
Gasoline
Truck

Sudbay Chevrolet · Gloucester, MA · 44 mi away

0 viewsStock # 26440A

Check availability Call

2021 GMC Sierra 1500 SLT87,716 miles · Chrysler Jeep Dodge Ram 24 · Brockton, MA · 17 mi away$31,244$7,851 less than this car

2020 GMC Sierra 1500155,812 miles · Classic Auto Sales · Holliston, MA · 39 mi away$22,998$16,097 less than this car

2020 GMC Sierra 1500 SLT54,595 miles · IMPERIAL CHEVROLET · Mendon, MA · 42 mi away$35,872$3,223 less than this car

2020 GMC Sierra 1500 SLT72,433 miles · Sudbay Chevrolet · Gloucester, MA · 44 mi away$34,784$4,311 less than this car

AutosXchange Intel uses current dealer-advertised asking prices, not completed sales or appraisals. It compares the same trim and condition (new or used) where at least three are listed nationwide, and adjusts the expected price for mileage; it is not adjusted for options, condition or accident history. Similar listings are searched within 50, 100 and 250 miles of the dealer first, then the dealer's state, then nationwide. The left gauge spans ±25% of the expected price. How AutosXchange price analysis works