Carrier profile · USDOT 178461 · MC-203361 · Updated Sep 6, 2026

Macmillan-piper LLC

42 power unitsSEATTLE, WA84/100
CARRIER ACTIVEMC-203361 ACTIVERATED SATISFACTORYHAZMAT
Verified linksmacpiper.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)
42
Observed power (24 mo)
—
Trailers (towed)
—

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