2021 GMC Sierra AT4
VIN
3GTU9EET7MG363243
This 2021 GMC Sierra AT4 is listed at $39,521 with 70,617 miles in Glen Burnie, MD.
Market Price Range
Below market
$32,406
Typical price
$36,699
Above market
$42,977
Based on
95
comparable same-build listings.
above typical price
Market data as of July 26, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 3.0L · V6 · Diesel
- 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 |
|---|---|---|---|---|
| i.g. Burton Buick GMC of Glen Burnie | Glen Burnie, MD 21061 | $39,521 | 70,617 mi | 2026-07-26 |
| I.G. Burton Buick GMC | Glen Burnie, MD 21061 | — | 70,617 mi | 2026-07-20 |
| i.g. Burton Buick GMC Subaru of Glen Burnie | Glen Burnie, MD 21061 | — | 70,617 mi | 2026-07-17 |
| i.g. Burton Buick GMC Subaru of Glen Burnie | Glen Burnie, MD 21061 | $38,722 | 70,617 mi | 2026-07-17 |
| I.G. Burton Buick GMC of Glen Burnie | Glen Burnie, MD 21061 | $39,521 | 70,617 mi | 2026-07-16 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| i.g. Burton Buick GMC Subaru of Glen Burnie | Glen Burnie, MD 21061 | — | 70,617 mi | 2026-07-17 |
| Fitzgerald Auto Mall Annapolis West Street | Annapolis, MD 21401 | $37,988 | 65,154 mi | 2026-03-29 |
| Fitzgerald Mazda of Annapolis | Annapolis, MD 21401 | $37,988 | 65,154 mi | 2026-03-27 |
| Fitzgerald Auto Mall Annapolis West Street | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2026-03-21 |
| Fitzgerald Auto Mall Annapolis West Street | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2026-03-17 |
| Fitzgerald Mazda of Annapolis | Annapolis, MD 21401 | $37,988 | 65,154 mi | 2026-03-16 |
| Fitzgerald Mazda of Annapolis | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2026-03-16 |
| Fitzgerald Mazda Annapolis | Annapolis, MD 21835 | $38,988 | 65,154 mi | 2026-03-16 |
| Fitzgerald Mazda of Annapolis | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2026-03-16 |
| Fitzgerald Mazda of Annapolis | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2026-03-15 |
| Fitzgerald Auto Mall Annapolis West Street | Annapolis, MD 21401 | $37,988 | 65,154 mi | 2026-02-05 |
| Fitzgerald Auto Mall Annapolis West Street | Annapolis, MD 21401 | $37,988 | 65,154 mi | 2026-01-30 |
| Fitzgerald Mazda of Annapolis | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2026-01-25 |
| Fitzgerald Auto Mall Annapolis West Street | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2026-01-25 |
| Fitzgerald Auto Mall Annapolis West Street | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2026-01-20 |
| Fitzgerald Auto Mall Annapolis West Street | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2025-12-26 |
| Fitzgerald Mazda Annapolis | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2025-12-24 |
| Fitzgerald Mazda Annapolis | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2025-12-24 |
| Fitzgerald Mazda of Annapolis | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2025-12-24 |
| Fitzgerald Mazda of Annapolis | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2025-12-24 |
| Fitzgerald Mazda of Annapolis | 21401 | $38,988 | 65,154 mi | 2025-12-24 |
| Fitzgerald Mazda Annapolis | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2025-12-24 |
| Fitzgerald Mazda Annapolis | Annapolis, MD 21401 | $37,988 | 65,154 mi | 2025-12-24 |
| Fitzgerald Mazda of Annapolis | 21401 | $37,988 | 65,154 mi | 2025-12-24 |
| Fitzgerald Mazda Annapolis | Annapolis, MD 21401 | $37,988 | 65,154 mi | 2025-12-24 |
| Fitzgerald Mazda Annapolis | Annapolis, MD 21401 | $38,988 | 65,154 mi | 2025-12-23 |
