2021 GMC Sierra AT4

VIN 1GTU9EET0MZ209361

This 2021 GMC Sierra AT4 is listed at $32,020 with 113,276 miles in Plattsburgh, NY.

GOOD DEAL $4,880 below typical price Asking $32,020 · typical market price $36,900 · based on 113 comparable same-build listings.

VehiLeaks · Vehicle History Report

The full history of this 2021 GMC Sierra AT4

VIN 1GTU9EET0MZ209361 · 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

$6 one-time

Get the full report → Instant access after checkout

Market Price Range

Below market

$29,919

Typical price

$36,900

Above market

$42,126

Based on 113 comparable same-build listings.

This vehicle: $32,020 — $4,880 below the typical market price ($36,900)

Market data as of August 16, 2026

See all 2021 GMC Sierra prices — typical $36,900 →

Vehicle Decode

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

Pull the original window sticker →

Safety

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

Price history for this VIN

Jul 29, 2026 · $31,845 Aug 12, 2026 · $31,845

Asking prices recorded across 4 listing dates for VIN 1GTU9EET0MZ209361, spanning 14 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
Brennan Buick GMC	Plattsburgh, NY 12901	$32,020	113,276 mi	2026-07-30

Former listings

Dealer	Location	Price	Mileage	Listed
Brennan Buick GMC	Plattsburgh, NY 12901	$31,845	113,276 mi	2026-07-30

What would this 2021 GMC Sierra AT4 cost per month?

Estimate the monthly payment on a $32,020 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

$571

per month

60 months · 7.0% APR · $3,202 down

Amount financed

$28,818

Total interest

$5,442

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.

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