2021 GMC Sierra SLT
VIN
3GTP8DET2MG411757
Market Price Range
Below market
$30,004
Typical price
$32,499
Above market
$37,587
Based on
12
comparable same-build listings.
Market data as of July 26, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 3.0L · V6 · Diesel
- Drive
- 4x2
- 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 |
|---|---|---|---|---|
| Classic Cadillac Galveston | Galveston, TX 77554 | — | 125,684 mi | 2026-07-08 |
| Classic Honda Galveston | 77551 | $27,463 | 125,684 mi | 2026-06-13 |
| Classic Ford | Galveston, TX 77554 | $27,272 | 125,684 mi | 2026-06-12 |
| Classic Chevrolet Buick GMC | Galveston, TX 77554 | $27,238 | 125,684 mi | 2026-06-12 |
| Classic Ford | Galveston, TX 77554 | $27,238 | 125,684 mi | 2026-06-10 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Classic Honda Galveston | Galveston, TX 77551 | $28,403 | 125,684 mi | 2026-06-13 |
| Classic Honda Galveston | Galveston, TX 77551 | $27,497 | 125,684 mi | 2026-06-13 |
| Classic Honda Galveston | Galveston, TX 77551 | $27,467 | 125,684 mi | 2026-06-13 |
| Classic Chevrolet Buick GMC | Galveston, TX 77554 | $28,200 | 125,661 mi | 2026-06-12 |
| Classic Chevrolet Buick GMC | Galveston, TX 77554 | $28,200 | 125,684 mi | 2026-06-12 |
| Classic Chevrolet Buick GMC | Galveston, TX 77554 | $28,178 | 125,684 mi | 2026-06-12 |
| Classic Ford | Galveston, TX 77554 | $28,200 | 125,684 mi | 2026-06-12 |
| Classic Chevrolet Buick GMC | Galveston, TX 77554 | $27,272 | 125,684 mi | 2026-06-12 |
| Classic Chevrolet Buick GMC | Galveston, TX 77554 | $27,242 | 125,684 mi | 2026-06-12 |
| Classic Ford | Galveston, TX 77554 | $28,200 | 125,661 mi | 2026-06-10 |
| Classic Ford | Galveston, TX 77554 | $28,178 | 125,684 mi | 2026-06-10 |
| Classic Ford | Galveston, TX 77554 | $27,272 | 125,684 mi | 2026-06-10 |
| Classic Ford | Galveston, TX 77554 | $27,242 | 125,684 mi | 2026-06-10 |
