Carrier profile · USDOT 332560 · Updated Jun 13, 2026

DUFF SUPPLY CO INC

DBA DUFF COMPANY

5 power unitsavg 2.2 yrLocal · 2 statesNORRISTOWN, PA100/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORYHAZMAT
Verified linksduffco.comFMCSA SAFER

Network & Fraud

Reincarnation chains, shared-VIN links, common domains and officers, and owner-group affiliations — the chameleon / double-broker signals that name-and-USDOT lookups miss.

No shared-VIN flow in the last 12 months

None of this carrier's trucks were inspected under another USDOT in the last 12 months — any shared equipment is historical, not active.
Show all-time history (2 trucks · 4 carriers)
Across all inspections on record: USDOT 338113USDOT 4404546USDOT 2357693USDOT 3211976

Capacity consistency· registered vs roadside-observed power units

Registered (MCS-150)5
Observed (24 mo)5
Shared w/ other carriers2

Registered and roadside-observed capacity are broadly consistent.

Shared-VIN cross-links· units inspected under more than one USDOT

VINCarriersInspectionsFirst seenLast seen
1HTMMMML7KH68686834Feb 8, 2024Apr 10, 2026
3ALACWFC0KDLJ227034Jan 9, 2024Mar 4, 2026