Equipment unit · VIN-decoded · NHTSA vPIC

1998 Polar tank trailer Polar Tank Trailer

1PMA24326W5001289 · Trailer · TRAILER

Carriers run under2

14 mo

Inspections3

all-time

OOS inspections1

of 3

First seen02/07/2025

Last seen04/03/2026

Inspected under 2 different carriers in 14 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: 1PMA24326W5001289
Make: Polar tank trailer
Model: Polar Tank Trailer
Model year: 1998
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 · 02/07/2025 – 04/03/2026

Date	State	Level	Viol.	OOS	Carrier (DOT)	Plate
04/03/2026	CA	II · Walk-around	2	—	POTTS ENTERPRISES LLC 3978033	4UW3181/CA
03/05/2026	CA	II · Walk-around	2	—	POTTS ENTERPRISES LLC 3978033	4UW3181/CA
02/07/2025	CA	I · Full	6	OOS	ACE TANK LINES 3371016	4UW3181/CA

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

Carrier	DOT	First seen	Last seen	Insp.	State
POTTS ENTERPRISES LLC	3978033	03/05/2026	04/03/2026	2	CA
ACE TANK LINES	3371016	02/07/2025	02/07/2025	1	CA

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.
4UW3181	CA	—	POTTS ENTERPRISES LLC	03/05/2026 → 04/03/2026	2
4UW3181	CA	—	ACE TANK LINES	02/07/2025 → 02/07/2025	1

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