2021 GMC Sierra AT4
VIN
3GTU9EET6MG385282
This 2021 GMC Sierra AT4 is listed at $31,777 with 120,539 miles in Cottonwood, AZ.
Market Price Range
Below market
$32,498
Typical price
$36,786
Above market
$42,986
Based on
97
comparable same-build listings.
below market price ($32498)
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 |
|---|---|---|---|---|
| Courtesy Auto Sales | Cottonwood, AZ 86326 | $31,777 | 120,539 mi | 2026-07-11 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| CarMax Albuquerque | Albuquerque, NM 87113 | $38,998 | 97,248 mi | 2025-10-25 |
| CarMax Ontario | Ontario, CA 91764 | $38,998 | 97,248 mi | 2025-09-22 |
| CarMax LAX | Inglewood, CA 90301 | $39,998 | 97,248 mi | 2025-09-12 |
| CarMax Palmdale | Palmdale, CA 93551 | $39,998 | 97,248 mi | 2025-09-07 |
| CarMax Palmdale | Palmdale, CA 93551 | $39,998 | 97,248 mi | 2025-09-07 |
