Equipment unit · VIN-decoded · NHTSA vPIC

2002 Superior trailer works Superior Trailer Works

1S9S0000420009111 · Trailer · TRAILER
Carriers run under2
28 mo
Inspections4
all-time
OOS inspections2
of 4
First seenAug 14, 2023
CA
Last seenDec 15, 2025
CA
Inspected under 2 different carriers in 28 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
1S9S0000420009111
Make
Superior trailer works
Model
Superior Trailer Works
Model year
2002
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 7, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
02

Inspection history

Every roadside inspection of this VIN, newest first · Aug 14, 2023 – Dec 15, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 15, 2025CAIII · Driver-only4—BC SAND AND GRAVEL TRANSPORT INC 31162144WX3617/CA
Sep 11, 2024CAI · Full4OOSWC LOGISTICS INC 9921424BW1409/CA
Sep 11, 2024CAI · Full1—WC LOGISTICS INC 9921424BW1409/CA
Aug 14, 2023CAI · Full3OOSWC LOGISTICS INC 9921424BW1409/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BC SAND AND GRAVEL TRANSPORT INC3116214Dec 15, 2025Dec 15, 20251CA
WC LOGISTICS INC992142Aug 14, 2023Sep 11, 20243CA
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.
4WX3617CA—BC SAND AND GRAVEL TRANSPORT INCDec 15, 2025 → Dec 15, 20251
4BW1409CA—WC LOGISTICS INCAug 14, 2023 → Sep 11, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026