Equipment unit · VIN-decoded · NHTSA vPIC

2006 Superior trailer works Superior Trailer Works

1S9S0000660009438 · Trailer · TRAILER
Carriers run under2
29 mo
Inspections3
all-time
OOS inspections0
of 3
First seenAug 3, 2023
CA
Last seenJan 26, 2026
CA
Inspected under 2 different carriers in 29 months
A unit that bounces between many operators can indicate slip-seating, heavy sub-haul, or double-brokering. Review the carrier timeline below for load integrity — context for human judgment, not a verdict.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1S9S0000660009438
Make
Superior trailer works
Model
Superior Trailer Works
Model year
2006
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 26, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
View sourced platform decode
02

Inspection history

Every roadside inspection of this VIN, newest first · Aug 3, 2023 – Jan 26, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 26, 2026CAII · Walk-around11—805 TRUCKING INC 30544504VD5189/CA
Aug 11, 2025CAI · Full5—WESTERN MATERIALS INC 27552404UF7789/CA
Aug 3, 2023CAV · Vehicle-only2—WESTERN MATERIALS INC 27552404UF7789/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
805 TRUCKING INC3054450Jan 26, 2026Jan 26, 20261CA
WESTERN MATERIALS INC2755240Aug 3, 2023Aug 11, 20252CA
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
4VD5189CA—805 TRUCKING INCJan 26, 2026 → Jan 26, 20261
4UF7789CA—WESTERN MATERIALS INCAug 3, 2023 → Aug 11, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026