2021 GMC Sierra AT4
VIN
3GTU9EET1MG120995
This 2021 GMC Sierra AT4 is listed at $37,299 in Glendale, WI.
Market Price Range
Below market
$32,453
Typical price
$36,887
Above market
$42,991
Based on
98
comparable same-build listings.
above typical price
Market data as of July 27, 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 |
|---|---|---|---|---|
| Umansky Chevrolet | Glendale, WI 53209 | $37,299 | — | 2026-07-25 |
| Umansky Chevrolet | Glendale, WI 53209 | $35,495 | 97,614 mi | 2026-07-22 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Umansky Chevrolet | Glendale, WI 53209 | $35,495 | 97,613 mi | 2026-07-22 |
| Ralph Sellers Chrysler Dodge Jeep Hyundai | Gonzales, LA 70737 | $60,000 | 27,688 mi | 2022-06-23 |
