2021 GMC Sierra SLT
VIN
1GTU9DET7MZ195551
This 2021 GMC Sierra SLT is listed at $42,995 with 38,318 miles in Somerset, PA.
Market Price Range
Below market
$29,238
Typical price
$35,381
Above market
$42,464
Based on
39
comparable same-build listings.
above market price ($42464)
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 |
|---|---|---|---|---|
| Woy Brothers GMC | Somerset, PA 15501 | $42,995 | 38,318 mi | 2026-07-20 |
| Woy Brothers Buick GMC | Somerset, PA 15555 | $42,995 | 38,318 mi | 2026-01-03 |
| Woy Brothers GMC | Somerset, PA 15501 | $46,345 | 38,313 mi | 2025-10-21 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Woy Brothers Buick GMC | Somerset, PA 15555 | $42,995 | 38,318 mi | 2026-01-03 |
| Woy Brothers Buick GMC | Somerset, PA 15555 | $42,995 | 38,318 mi | 2026-01-03 |
| Woy Brothers Buick GMC | Somerset, PA 15555 | $42,995 | 38,318 mi | 2026-01-03 |
| Woy Brothers Buick GMC | Somerset, PA 15555 | $42,995 | 38,318 mi | 2026-01-03 |
| Woy Brothers Buick GMC | Somerset, PA 15555 | $45,995 | 38,318 mi | 2026-01-01 |
| Woy Brothers Buick GMC | Somerset, PA 15555 | $45,995 | 38,318 mi | 2025-10-23 |
| Woy Brothers GMC | Somerset, PA 15501 | $45,995 | 38,313 mi | 2025-10-21 |
| Woy Brothers GMC | Somerset, PA 15501 | $45,995 | 38,313 mi | 2025-09-08 |
| Woy Brothers GMC | Somerset, PA 15501 | $45,995 | 38,313 mi | 2025-09-07 |
