Equipment unit · VIN-decoded · NHTSA vPIC

2015 Dragon products Dragon Products

1UNST4423FS140395 · Trailer · TRAILER

Carriers run under2

8 mo

Inspections3

all-time

OOS inspections0

of 3

First seen09/16/2025

Last seen05/14/2026

Inspected under 2 different carriers in 8 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: 1UNST4423FS140395
Make: Dragon products
Model: Dragon Products
Model year: 2015
Body class: Trailer
Vehicle type: TRAILER
GVWR: Not decoded
Decoded at: 07/26/2026

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 · 09/16/2025 – 05/14/2026

Date	State	Level	OOS	Carrier (DOT)	Plate
05/14/2026	TX	II · Walk-around	—	GUARDIAN OILFIELD SERVICES INC 1813088	242B828/TX
04/06/2026	TX	II · Walk-around	—	GUARDIAN OILFIELD SERVICES INC 1813088	242B828/TX
09/16/2025	TX	II · Walk-around	—	DIAMOND B OPERATING LLC 2120653	242B828/TX

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

Carrier	DOT	First seen	Last seen	Insp.	State
GUARDIAN OILFIELD SERVICES INC	1813088	04/06/2026	05/14/2026	2	OK
DIAMOND B OPERATING LLC	2120653	09/16/2025	09/16/2025	1	TX

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.
242B828	TX	—	GUARDIAN OILFIELD SERVICES INC	04/06/2026 → 05/14/2026	2
242B828	TX	—	DIAMOND B OPERATING LLC	09/16/2025 → 09/16/2025	1

Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 07/26/2026