2021 GMC Sierra AT4
VIN
1GTU9EETXMZ154272
This 2021 GMC Sierra AT4 is listed at $40,943 with 66,186 miles in Lompoc, CA.
Market Price Range
Below market
$31,997
Typical price
$37,485
Above market
$42,966
Based on
112
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 |
|---|---|---|---|---|
| Sunset Auto Center | Lompoc, CA 93436 | $40,943 | 66,186 mi | 2026-06-21 |
| Sunset Auto Center | Lompoc, CA 93436 | $40,943 | 66,170 mi | 2026-06-11 |
| Sunset Auto Center | Lompoc, CA 93436 | $40,943 | 66,186 mi | 2026-06-11 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Sunset Auto Center | Lompoc, CA 93436 | $40,943 | 66,170 mi | 2026-06-21 |
| Sunset Auto Center | Lompoc, CA 93436 | — | 66,166 mi | 2026-06-11 |
| Sunset Auto Center | Lompoc, CA 93436 | $40,943 | 66,166 mi | 2026-06-11 |
| Sunset Auto Center | Lompoc, CA 93436 | $40,943 | 66,170 mi | 2026-06-11 |
