2021 GMC Sierra AT4

VIN 3GTP9EED7MG339322

This 2021 GMC Sierra AT4 is listed at $37,221 with 83,007 miles in Indianola, IA.

GOOD DEAL $1,046 below typical price Asking $37,221 · 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 3GTP9EED7MG339322 · 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

$30,395

Typical price

$38,267

Above market

$42,414

Based on 83 comparable same-build listings.

This vehicle: $37,221 — $1,046 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

Look up the factory Monroney sticker by VIN →

Safety

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

Price history for this VIN

Asking price over time

Dec 31, 2022 · $54,616 Aug 13, 2026 · $37,221

Asking prices recorded across 2 listing dates for VIN 3GTP9EED7MG339322, spanning 3 years 7 months.

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
Gregg Young Buick GMC	Indianola, IA 50125	$37,221	83,007 mi	2026-08-13

Former listings

Dealer	Location	Price	Mileage	Listed
Dewey Ford	Ankeny, IA 50021	$54,616	14,095 mi	2022-12-31

What would this 2021 GMC Sierra AT4 cost per month?

Estimate the monthly payment on a $37,221 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

$663

per month

60 months · 7.0% APR · $3,722 down

Amount financed

$33,499

Total interest

$6,281

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

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