2021 GMC Sierra
VIN
3GTN9AEF9MG124879
Market Price Range
Below market
$18,298
Typical price
$24,290
Above market
$30,490
Based on
6
comparable same-build listings.
Market data as of July 26, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 5.3L · V8 · Gasoline
- Drive
- 4WD/4-Wheel Drive/4x4
- Doors
- 2
- 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 |
|---|---|---|---|---|
| Mastria GMC Cadillac | Raynham, MA 2767 | — | 116,847 mi | 2026-07-23 |
| Mastria GMC Cadillac | Raynham, MA 2767 | — | 116,847 mi | 2026-07-21 |
| Mastria GMC Cadillac | Raynham, MA 2767 | $19,800 | 116,847 mi | 2026-07-21 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Mastria GMC Cadillac | Raynham, MA 2767 | — | 116,847 mi | 2026-07-21 |
| BMW of Newport | Middletown, RI 02842 | $25,995 | 89,704 mi | 2025-01-04 |
