2021 GMC Sierra

VIN  3GTN8AEH8MG448409

This 2021 GMC Sierra is listed at $12,900 with 131,644 miles in Manassas, VA.

GREAT DEAL $9,691 below typical price Asking $12,900 · typical market price $22,591 · based on 4 comparable same-build listings.
VehiLeaks · Vehicle History Report
The full history of this 2021 GMC Sierra
VIN 3GTN8AEH8MG448409 · one-time $6, no subscription
  • Reported accidents & damage
  • Title brands — salvage, flood, lemon
  • Odometer readings over time
  • Every past listing: price, dealer, photos
Pickup 4.3L V6 4x2 Gasoline
2021 GMC Sierra
$6 one-time
Get the full report → Instant access after checkout

Market Price Range

Below market
$18,888
Typical price
$22,591
Above market
$25,304
Based on 4 comparable same-build listings.
This vehicle: $12,900 — below the market range (typical price $22,591)
Market data as of August 16, 2026

Vehicle Decode

Body
Pickup
Engine
4.3L · V6 · Gasoline
Drive
4x2
Doors
2
Made by
GENERAL MOTORS LLC

Safety

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

Price history for this VIN

Aug 11, 2026 · $12,900 Aug 13, 2026 · $12,900

Asking prices recorded across 2 listing dates for VIN 3GTN8AEH8MG448409, spanning 2 days.

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
1 Auto Inc. Manassas, VA 20111 $12,900 131,644 mi 2026-08-13

What would this 2021 GMC Sierra cost per month?

Estimate the monthly payment on a $12,900 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
$230
per month
60 months · 7.0% APR · $1,290 down
Amount financed
$11,610
Total interest
$2,190

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
2021 GMC Sierra
$15,999
185,000 mi · Coldwater, KS
 2021 GMC Sierra
2021 GMC Sierra
$16,800
168,712 mi · Red Springs, NC
 2021 GMC Sierra
2021 GMC Sierra
$19,785
97,004 mi · Leesburg, VA
 2021 GMC Sierra
2021 GMC Sierra
$19,995
154,984 mi · Marion, IN
 2021 GMC Sierra Elevation
2021 GMC Sierra Elevation
$24,313
135,773 mi · Davison, MI
 2021 GMC Sierra Elevation
2021 GMC Sierra Elevation
$25,009
114,000 mi · Mt Pleasant, TX
 2021 GMC Sierra
2021 GMC Sierra
$27,995
72,878 mi · Brighton, MI
 2021 GMC Sierra Elevation
2021 GMC Sierra Elevation
$29,654
109,380 mi · Sioux City, IA
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 Manassas, VA.
GMC Sierra 2020–2022 Near Manassas, VA
Browse on VehiSales →
Powered by VinAssessment — real-time pricing intelligence for car dealers.