2021 GMC Sierra AT4

VIN 3GTP9EED1MG326520

This 2021 GMC Sierra AT4 is listed at $30,984 with 140,209 miles.

GOOD DEAL $7,283 below typical price Asking $30,984 · typical market price $38,267 · based on 83 comparable same-build listings.

VehiLeaks · Vehicle History Report

The full history of this 2021 GMC Sierra AT4

VIN 3GTP9EED1MG326520 · one-time $6, no subscription

Reported accidents & damage
Title brands — salvage, flood, lemon
Odometer readings over time
Every past listing: price, dealer, photos

Pickup 5.3L V8 4WD Gasoline

$6 one-time

Get the full report → Instant access after checkout

Market Price Range

Below market

$30,589

Typical price

$38,267

Above market

$42,414

Based on 83 comparable same-build listings.

This vehicle: $30,984 — $7,283 below the typical market price ($38,267)

Market data as of August 16, 2026

See all 2021 GMC Sierra prices — typical $38,267 →

Vehicle Decode

Body: Pickup
Engine: 5.3L · V8 · Gasoline
Drive: 4WD/4-Wheel Drive/4x4
Doors: 4
Made by: GENERAL MOTORS LLC

See the factory equipment and MSRP for this VIN →

Safety

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

Price history for this VIN

Price increased $1,824 (+6.3%) over 24 days.

Jul 16, 2026 · $28,980 Aug 9, 2026 · $30,804

Asking prices recorded across 5 listing dates for VIN 3GTP9EED1MG326520, spanning 24 days.

Safety & ownership

EPA fuel economy (MPG)

City

Highway

Combined

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
—		$30,984	140,209 mi	2026-08-02
Le Mars Chevrolet GMC	Le Mars, IA 51031	$30,660	140,209 mi	2026-07-19
Le Mars Chevrolet	Le Mars, IA 51031	$30,984	140,209 mi	2026-07-16

Former listings

Dealer	Location	Price	Mileage	Listed
Le Mars Chevrolet GMC	Le Mars, IA 51031	$30,480	140,209 mi	2026-07-16

What would this 2021 GMC Sierra AT4 cost per month?

Estimate the monthly payment on a $30,984 vehicle. Move the numbers to match your own loan.

Vehicle price

Down payment

10% down

Interest rate (APR)

7.0% is a typical rate for a well-qualified buyer — use your own quote if you have one.

Loan term

Estimated monthly payment

$552

per month

60 months · 7.0% APR · $3,098 down

Amount financed

$27,886

Total interest

$5,234

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.