2021 GMC Sierra AT4

VIN  3GTU9EET6MG242543

This 2021 GMC Sierra AT4 is listed at $34,995 with 115,004 miles in Redding, CA.

FAIR PRICE within $851 of the typical market price Asking $34,995 · typical market price $35,846 · based on 68 comparable same-build listings.
VehiLeaks · Vehicle History Report
The full history of this 2021 GMC Sierra AT4
VIN 3GTU9EET6MG242543 · one-time $6, no subscription
  • Reported accidents & damage
  • Title brands — salvage, flood, lemon
  • Odometer readings over time
  • Every past listing: price, dealer, photos
Pickup 3.0L V6 4WD Diesel
2021 GMC Sierra AT4
$6 one-time
Get the full report → Instant access after checkout

Market Price Range

Below market
$31,436
Typical price
$35,846
Above market
$44,278
Based on 68 comparable same-build listings.
This vehicle: $34,995 — within $851 of the typical market price ($35,846)
Market data as of August 16, 2026

Vehicle Decode

Body
Pickup
Engine
3.0L · V6 · Diesel
Drive
4WD/4-Wheel Drive/4x4
Doors
4
Made by
GENERAL MOTORS LLC

Safety

  • Backup camera
  • Blind-spot monitor
  • Lane departure
  • ABS
  • Electronic stability

Price history for this VIN

Jul 1, 2026 · $34,995 Jul 2, 2026 · $34,995

Asking prices recorded across 2 listing dates for VIN 3GTU9EET6MG242543, spanning 1 day.

Safety & ownership

EPA fuel economy (MPG)

City
23
Highway
30
Combined
26
Est. fuel cost: $1,790/year
Assumes 15,000 miles a year at $3.10/gallon and 26 MPG combined.

Model-level data for the 2021 GMC Sierra from NHTSA (recalls, NCAP crash tests) and EPA fueleconomy.gov, refreshed July 28, 2026.

Active listings

Full listing history on VehiSales →
Dealer Location Price Mileage Listed
Redding Car and Truck Center Redding, CA 96002 $34,995 115,004 mi 2026-07-02

Former listings

Dealer Location Price Mileage Listed
Redding Car And Truck Center Redding, CA 96002 $34,995 115,004 mi 2026-07-02

What would this 2021 GMC Sierra AT4 cost per month?

Estimate the monthly payment on a $34,995 vehicle. Move the numbers to match your own loan.

10% down
7.0% is a typical rate for a well-qualified buyer — use your own quote if you have one.
Loan term
Estimated monthly payment
$624
per month
60 months · 7.0% APR · $3,500 down
Amount financed
$31,495
Total interest
$5,945

Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.

Watch the price on this model

Prices move every week. We'll email you when the typical asking price for a 2021 GMC Sierra moves 3% or more — no account, one-click unsubscribe.

We only email you about this vehicle's price. Unsubscribe from any message.

More GMC Sierra for sale

2021 GMC Sierra Denali
2021 GMC Sierra Denali
$34,999
93,865 mi · Concord, NC
2021 GMC Sierra SLT
$34,774
88,635 mi · Saint Cloud, MN
2021 GMC Sierra AT4
2021 GMC Sierra AT4
$35,204
92,178 mi · Peru, IL
2021 GMC Sierra Denali
2021 GMC Sierra Denali
$35,240
137,480 mi · Columbus, IN
2021 GMC Sierra Elevation
2021 GMC Sierra Elevation
$35,391
74,548 mi · McMinnville, OR
2021 GMC Sierra AT4
2021 GMC Sierra AT4
$35,590
91,445 mi · Grapevine, TX
2021 GMC Sierra Elevation
2021 GMC Sierra Elevation
$36,850
99,971 mi · El Paso, TX
2021 GMC Sierra SLT
2021 GMC Sierra SLT
$37,988
65,792 mi · Grand Rapids, MI
VehiSales · Cars for Sale
Shopping for a GMC Sierra like this?
Browse every GMC Sierra on the market right now — live dealer listings with photos and prices, already filtered to this model near Redding, CA.
GMC Sierra 2020–2022 Near Redding, CA
Browse on VehiSales →
Powered by VinAssessment — real-time pricing intelligence for car dealers.