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Sapaugh Buick GMC · Herculaneum, MO

2021 GMC Sierra 1500 SLT

32,182 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2021
MakeGMC
ModelSierra 1500
TrimSLT
Stock number267455
Mileage32,182 miles
BodyPickup
Engine5.3L 8-cyl
Cylinders8
Displacement5.3L
TransmissionAutomatic
Drivetrain4WD
FuelGasoline
MPG14 city / 20 hwy
ExteriorSummit White
Doors4

Vehicle description

** We are 15 minutes south of St. Louis. Everyone leaves happy! This 2021 GMC Sierra 1500 SLT is an impressive truck packed with premium features to elevate your driving experience. Outfitted with the EcoTec3 5.3L V8 engine and 10-speed automatic transmission, this Sierra delivers a powerful and efficient performance. - TEXAS EDITION SLT PREMIUM PLUS PACKAGE - X31 OFF-ROAD PACKAGE - PREMIUM BOSE 7-SPEAKER SOUND SYSTEM - RADIO: PREMIUM GMC INFOTAINMENT SYS W/NAVIGATION - SIRIUSXM W/360L - SPRAY-ON BEDLINER W/GMC LOGO This Sierra SLT stands out with its rugged yet refined style. The chrome grille, 20-inch polished aluminum wheels, and chrome assist steps give it a bold, premium look. Under the hood, the advanced 5.3L V8 engine and 4WD system provide the capability to tackle any terrain. Inside, you'll find an array of comfort and convenience features, including heated front seats, a heated steering wheel, and dual-zone automatic climate control. The Premium Bose sound system and GMC Infotainment system with built-in navigation ensure you stay entertained and connected on the road. For added peace of mind, this Sierra SLT is equipped with an impressive suite of advanced safety technologies. Features like Forward Collision Alert, Automatic Emergency Braking, and Lane Keep Assist help provide added protection for you and your passengers. Whether you're hauling heavy loads, navigating off-road adventures, or simply enjoying a comfortable commute, this 2021 GMC Sierra 1500 SLT is ready to exceed your expectations. Visit us today to experience the power, capability, and premium features of this impressive truck.

Features & options (101)

  • Adaptive Cruise Control
  • Heated Steering Wheel
  • 4WD/AWD
  • Aux Input
  • Heated Seats
  • Keyless Entry
  • Keyless Ignition System
  • Leather Seats
  • Wi-Fi Hotspot
  • Emergency Brake Assist
  • Blind Spot Monitor
  • Navigation System
  • Rear View Camera
  • Satellite Radio
  • Tow Hitch/Tow Package
  • Entertainment System
  • Rear head restraint control : 2 rear seat head restraints
  • Seating capacity : 5
  • This enhances cab appearance and adds sound and weather insulation.
  • Floor mats protect the vehicle floor covering from dirt and wear and can easily be removed for cleaning.
  • Rear seatback upholstery : Carpet rear seatback upholstery
  • Interior accents : Chrome interior accents
  • Headliner material : Cloth headliner material
  • Rear seats fixed or removable : Fixed rear seats
  • Carpet flooring enhances the interior appearance and provides an added layer of sound insulation.
  • Full coverage flooring enhances the interior appearance and provides an added layer of sound insulation.
  • Headliner coverage : Full headliner coverage
  • Front head restraint control : Manual front seat head restraint control
  • Rear head restraint control : Manual rear seat head restraint control
  • Panel insert : Metal-look instrument panel insert
  • Front seatback upholstery : Plastic front seatback upholstery
  • This feature provides increased comfort for rear seat passengers.
  • A center armrest contributes to a more comfortable driving environment.
  • Door panel insert : Simulated wood and metal-look door panel insert
  • Gearshifter material : Urethane gear shifter material
  • This provides an attractive, finished appearance.
  • Vinyl offers easy maintenance and durability.
  • Exterior 120V AC power outlet : 1 exterior 120V AC power outlet
  • Number of beverage holders : 6 beverage holders
  • Passenger doors rear left : Conventional left rear passenger door
  • Passenger doors rear right : Conventional right rear passenger door
  • Clock : Digital clock
  • This feature helps to keep the driver informed about the status of systems on the vehicle.
  • The addition of a visor mirror increases the functionality of the visor.
  • Beverage holders prevent spills and free the driver's hands, which increases safe operation of the vehicle.
  • Rear seat direction : Front facing rear seat
  • Integrated tailgate step
  • Rear cargo door : MultiPro Tailgate tailgate
  • Oil pressure gauge
  • Oil pressure warning
  • This makes it easier to read in low light conditions.
  • This feature helps to remove frost/ice/snow for increased visibility.
  • Speedometer : Redundant digital speedometer
  • Tachometer
  • A trip odometer is useful for keeping track of distance traveled during a trip or between fill-ups.
  • The variable intermittent setting allows the wipers to be adjusted based on the amount of moisture the vehicle is driving through.
  • Voltmeter
  • Number of doors : 4 doors
  • Fenders : Black fender flares
  • Bumper rub strip front : Black front bumper rub strip
  • Door handle material : Chrome door handles
  • Door mirror style : Chrome door mirrors
  • Bumpers front : Chrome front bumper
  • Grille style : Chrome grille
  • Bumpers rear : Chrome rear bumper
  • Window Trim : Chrome side window trim
  • Vehicle to trailer hitching assist : Hitch Guidance vehicle to trailer hitching assist
  • In-box lighting : LED in-box lighting
  • Special paint : Monotone paint
  • Door mirror type : Standard style side mirrors
  • This helps reduce exhaust pollutants.
  • Emissions tiers : Tier 2 Bin 5 emissions
  • Satellite trial : 3 month satellite trial subscription
  • Speakers number : 7 speakers
  • Primary display size : 8 inch primary display
  • This stereo system offers noticeably improved fidelity and listening satisfaction compared to a non-amplified audio system.
  • Antenna : Fixed audio antenna
  • Seek scan
  • Valves per cylinder : 2
  • Horsepower : 355 HP @5600 RPM
  • Displacement liters : 5.3 L
  • The alternator maintains the battery charge and supplies electrical power for the ignition system and accessory equipment.
  • Aluminum construction is lightweight, providing weight savings that contribute to better handling and fuel economy.
  • A heavy-duty battery provides increased capacity to accommodate higher service loads, such as cold weather starting.
  • Powertrain type : ICE
  • Rack-and-pinion steering responds quickly to driver input and provides good road feel.
  • Fuel Type : Regular unleaded
  • A monobeam axle provides rigidity and strength. It is used by most trucks and large SUVs because it can support heavy loads.
  • Seatbelt pretensioners number : 2 seatbelt pre-tensioners
  • This safety feature is more easily visible to following drivers and helps them react quicker to a slowing or stopped vehicle.
  • This headlamp layout provides improved lighting due to the dedicated task assigned to each bulb.
  • The additional chest coverage provides upper body support during a collision.
  • DriveType: Four Wheel Drive
  • City: 14 MPG
  • Hwy: 20 MPG
  • Combined: 16 MPG
  • Fuel System: Direct Injection
  • Fuel Tank Capacity: 24 gal
  • Fuel Type: Gasoline Fuel
  • Horse Power: 355
  • Rear Wheel: Single

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 100 miles of Herculaneum, Missouri
Asking price$37,536Dealer asking price · 32,182 mi
Market value$33,949Market value · based on 5 comparable cars
vs. market High price+10.6%High price · based on 5 comparable cars

Where this price sits

Among the highest-priced · 0% of 5 similar listings ask more than this car.

$25,200lowest$37,536highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+10.6%
−25%Market value+25%
High price$3,587 above the market value of $33,949

Price range

$37,536
$25,200$37,536
6th lowest price of 6 similar listings within 100 milesTick marks the market value · range of 5 similar listings

AutosXchange Insights

  • Compared with 5 used 2020 GMC Sierra 1500 SLT listings within 100 mi.
  • Priced $3,587 above the market value of 5 comparable cars — compare options, condition and history.
  • 6th lowest price of 6 similar listings within 100 miles.
  • Has about 36,000 fewer miles than similar listings.
  • About 5,364 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # 267455 — 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 ($37,536).0 price changes at this dealership: $37,536 → $37,536.

$37.3k$37.4k$37.5k$37.6k$37.7k$37.8kNov 6Nov 7Nov 8Nov 9Nov 10Nov 11

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 11); 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 Sierra 1500 SLT · used · any miles · within 100 miles of Herculaneum, Missouri. All 5 comparable cars for sale, nearest first.

More GMC Sierra 1500 near Herculaneum

All years and trims. Nearest first.