2020 GMC Sierra AT4
VIN
3GTP9EEL3LG173886
This 2020 GMC Sierra AT4 is listed at $42,654 with 49,501 miles in Milford, DE.
Market Price Range
Below market
$30,182
Typical price
$36,500
Above market
$41,995
Based on
159
comparable same-build listings.
above market price ($41995)
Market data as of July 27, 2026
Vehicle Decode
- Body
- Pickup
- Engine
- 6.2L · V8 · Gasoline
- 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 |
|---|---|---|---|---|
| Hertrich's Ford of Milford | Milford, DE 19963 | $42,654 | 49,501 mi | 2026-06-19 |
| Hertrich Ford Lincoln of Milford | Milford, DE 19963 | $42,343 | 49,501 mi | 2026-06-18 |
| Hertrich Ford Lincoln of Milford | Milford, DE 19963 | $41,855 | 49,501 mi | 2026-06-17 |
Former listings
| Dealer | Location | Price | Mileage | Listed |
|---|---|---|---|---|
| Hertrich Ford Lincoln of Milford | Milford, DE 19963 | $42,521 | 49,501 mi | 2026-06-19 |
| Hertrich's Ford of Milford | Milford, DE 19963 | $42,732 | 49,501 mi | 2026-06-19 |
| Hertrich Ford Lincoln of Milford | Milford, DE 19963 | $42,732 | 49,501 mi | 2026-06-19 |
| Hertrich Ford Lincoln of Milford | Milford, DE 19963 | $42,654 | 49,501 mi | 2026-06-19 |
| Hertrich Ford Lincoln of Milford | Milford, DE 19963 | $43,710 | 45,496 mi | 2026-06-18 |
| Hertrich Ford Lincoln of Milford | Milford, DE 19963 | $42,911 | 45,496 mi | 2026-06-17 |
| Hertrich Ford Lincoln of Milford | Milford, DE 19963 | $41,722 | 45,496 mi | 2026-06-17 |
| Hertrich Ford Lincoln of Milford | Milford, DE 19963 | $41,722 | 49,501 mi | 2026-06-17 |
| Hertrich Ford Lincoln of Milford | Milford, DE 19963 | $41,933 | 49,501 mi | 2026-06-17 |
| Porter Ford | Newark, DE 19711 | — | 28 mi | 2024-02-24 |
