Equipment unit · VIN-decoded · NHTSA vPIC

2012 Dragon products Dragon Products

1UNST4424CS093339 · Trailer · TRAILER

Carriers run under2

29 mo

Inspections3

all-time

OOS inspections1

of 3

First seenJul 12, 2023

Last seenDec 9, 2025

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.

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN: 1UNST4424CS093339
Make: Dragon products
Model: Dragon Products
Model year: 2012
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.

Inspection history

Every roadside inspection of this VIN, newest first · Jul 12, 2023 – Dec 9, 2025

Date	State	Level	Viol.	OOS	Carrier (DOT)	Plate
Dec 9, 2025	TX	II · Walk-around	1	—	KNOWLES TRUCKING LLC 1246064	239C399/TX
Mar 22, 2024	OK	II · Walk-around	2	OOS	J&R TRANSPORT INC 915031	AN1516/OK
Jul 12, 2023	OK	I · Full	1	—	J&R TRANSPORT INC 915031	AN1516/OK

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

Carrier	DOT	First seen	Last seen	Insp.	State
KNOWLES TRUCKING LLC	1246064	Dec 9, 2025	Dec 9, 2025	1	OK
J&R TRANSPORT INC	915031	Jul 12, 2023	Mar 22, 2024	2	OK

Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.

Plate & unit-number history

The same truck under different plate registrations across carriers

Plate	State / prov.	Unit no.	Carrier	Date range	Insp.
239C399	TX	—	KNOWLES TRUCKING LLC	Dec 9, 2025 → Dec 9, 2025	1
AN1516	OK	—	J&R TRANSPORT INC	Jul 12, 2023 → Mar 22, 2024	2

Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026