Equipment unit · VIN-decoded · NHTSA vPIC

2021 Heil trailer international Heil Trailer International

3H4SA4321M3109827 · Trailer · TRAILER

Carriers run under2

34 mo

Inspections5

all-time

OOS inspections0

of 5

First seenJul 17, 2023

Last seenMay 6, 2026

Inspected under 2 different carriers in 34 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: 3H4SA4321M3109827
Make: Heil trailer international
Model: Heil Trailer International
Model year: 2021
Body class: Trailer
Vehicle type: TRAILER
GVWR: Not decoded
Decoded at: Jul 3, 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 17, 2023 – May 6, 2026

Date	State	Level	Viol.	OOS	Carrier (DOT)	Plate
May 6, 2026	TX	I · Full	0	—	WINDSTAR TRUCKING LLC 2126272	131B718/TX
Dec 11, 2025	TX	II · Walk-around	2	—	WINDSTAR TRUCKING LLC 2126272	131B718/TX
Jul 12, 2024	TX	II · Walk-around	0	—	ALLIANCE TANK LINES LLC 270666	131B718/TX
Oct 11, 2023	TX	II · Walk-around	0	—	ALLIANCE TANK LINES LLC 270666	131B718/TX
Jul 17, 2023	TX	I · Full	0	—	ALLIANCE TANK LINES LLC 270666	131B718/TX

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

Carrier	DOT	First seen	Last seen	Insp.	State
WINDSTAR TRUCKING LLC	2126272	Dec 11, 2025	May 6, 2026	2	TX
ALLIANCE TANK LINES LLC	270666	Jul 17, 2023	Jul 12, 2024	3	LA

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.
131B718	TX	—	WINDSTAR TRUCKING LLC	Dec 11, 2025 → May 6, 2026	2
131B718	TX	—	ALLIANCE TANK LINES LLC	Jul 17, 2023 → Jul 12, 2024	3

Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 3, 2026