2021 GMC Sierra AT4
VIN
3GTP9EED8MG279082
This 2021 GMC Sierra AT4 is listed at $38,630 with 64,476 miles in Greencastle, PA.
Market Price Range
Below market
$31,490
Typical price
$37,998
Above market
$43,978
Based on
100
comparable same-build listings.
above typical price
Market data as of July 26, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 5.3L · V8 · Gasoline
- Drive
- 4WD/4-Wheel Drive/4x4
- Doors
- 4
- Made by
- GENERAL MOTORS LLC
Safety
- ✗ Backup camera
- ✗ Blind-spot monitor
- ✗ Lane departure
- ✗ ABS
- ✗ Electronic stability
Active listings
Full listing history on VehiSales →| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| timbrook automotive | Greencastle, PA 17225 | $38,630 | 64,476 mi | 2026-07-04 |
| Team One Chevrolet GMC | Oakland, MD 21550 | $39,425 | 64,476 mi | 2026-07-03 |
| Team One Chevrolet GMC | Oakland, MD 21550 | $38,630 | 64,476 mi | 2026-07-03 |
| Team One Chevrolet GMC | Oakland, MD 21550 | $38,630 | 64,476 mi | 2026-06-28 |
