Carrier profile · USDOT 2340459 · Updated Jun 13, 2026
MASTER INSULATION AND SERVICES
3 power unitsLocal · 1 statesMOUNT VERNON, WA78/100
AUTHORITY STATUS UNKNOWN
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)
- 3
- Observed power (24 mo)
- 5
- Trailers (towed)
- 0
Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.
Unit roster· VIN-decoded from inspections · NHTSA vPIC
| VIN | Type | Year | Make | Model | Insp. | Last seen |
|---|---|---|---|---|---|---|
| JALC4W160L7010514 | Power unit | 2020 | ISUZU | — | 1 | Oct 21, 2025 |
| 54DK6S1F1SSA00035 | Power unit | 2025 | ISUZU | — | 1 | Oct 1, 2025 |
| JALC4W163K7009761 | Power unit | 2019 | ISUZU | — | 1 | May 7, 2025 |
| 54DC4W1D8RS213393 | Power unit | 2024 | ISUZU | — | 1 | Mar 28, 2025 |
| 3HAMMMML7JL566741 | Power unit | 2018 | INTERNATIO | — | 1 | Sep 4, 2024 |
Showing 5 · most-inspected first.