Carrier profile · USDOT 3177476 · MC-123514 · Updated Jun 13, 2026
WILLIAM S PARKER
DBA FOUR BROTHERS TRUCKING
1 power unitavg 17 yrLocal · 1 statesSALISBURY, MD50/100
CARRIER ACTIVEMC-123514 ACTIVE
Equipment
Haulable capacity (power units only — trailers are towed context), equipment mix, and the VIN-decoded unit roster. Click any VIN to trace that unit across every carrier that has run it.
Capacity· power units = haulable capacity; trailers are towed
- Registered power units (MCS-150)
- 1
- Observed power (24 mo)
- 1
- Trailers (towed)
- 1
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Fleet age· model years · decoded VINs
Average age
2019
Newest model yr
1999
Oldest model yr
100.0%
VINs decoded
Unit roster· VIN-decoded from inspections · NHTSA vPIC
| VIN | Type | Year | Make | Model | Insp. | Last seen |
|---|---|---|---|---|---|---|
| 1UYVS2538K7490939View sourced platform decode | Trailer | 2019 | UTILITY TRAILER MA | Utility Trailer Manufacturer | 3 | Feb 27, 2026 |
| 1XP5DB9X1XN471267View sourced platform decode | Truck-Tractor | 1999 | PETERBILT | 379 | 3 | Feb 27, 2026 |
Showing 2 · most-inspected first.