Carrier profile · USDOT 4178798 · MC-1608537 · Updated Jun 13, 2026

St 321 Transport LLC

2 power unitsSAN ANTONIO, TX50/100
NO OPERATING AUTHORITYMC-1608537 NO AUTHORITYUNDELIVERABLE ADDRESS
Verified linkssfgpools.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)
2
Observed power (24 mo)
—
Trailers (towed)
—

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