Carrier profile · USDOT 3424629 · Updated Jun 13, 2026

TREBLE SEVEN LLC

DBA 3 MOUNTAINS PLUMBING 3 MOUNTAINS EXCAVATION 3 MOUNTAINS HEATING & COOLING

19 power unitsPORTLAND, OR50/100
AUTHORITY STATUS UNKNOWN
Verified links3mountainsplumbing.comFMCSA SAFER

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)
19
Observed power (24 mo)
—
Trailers (towed)
—

Capacity is power units only — trailers are towed equipment and are never summed into a fleet-size figure.