Equipment unit · VIN-decoded · NHTSA vPIC

2023 Polar tank trailer Polar Tank Trailer

3H6KL4321P3119151 · Trailer · TRAILER

Carriers run under2

9 mo

Inspections4

all-time

OOS inspections0

of 4

First seenJul 16, 2024

Last seenApr 7, 2025

Inspected under 2 different carriers in 9 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: 3H6KL4321P3119151
Make: Polar tank trailer
Model: Polar Tank Trailer
Model year: 2023
Body class: Trailer
Vehicle type: TRAILER
GVWR: Not decoded
Decoded at: Jul 12, 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 16, 2024 – Apr 7, 2025

Date	State	Level	Viol.	OOS	Carrier (DOT)	Plate
Apr 7, 2025	PA	III · Driver-only	0	—	D A C K TRANSPORTATION LLC 3098317	5237197/ME
Jul 24, 2024	MD	I · Full	1	—	D A C K TRANSPORTATION LLC 3098317	5237197/ME
Jul 24, 2024	MD	I · Full	0	—	M PITTMAN ENTERPRISES LC 1008530	5237197/ME
Jul 16, 2024	MD	II · Walk-around	0	—	D A C K TRANSPORTATION LLC 3098317	5237197/ME

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

Carrier	DOT	First seen	Last seen	Insp.	State
D A C K TRANSPORTATION LLC	3098317	Jul 16, 2024	Apr 7, 2025	3	MD
M PITTMAN ENTERPRISES LC	1008530	Jul 24, 2024	Jul 24, 2024	1	VA

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.
5237197	ME	—	D A C K TRANSPORTATION LLC	Jul 16, 2024 → Apr 7, 2025	3
5237197	ME	—	M PITTMAN ENTERPRISES LC	Jul 24, 2024 → Jul 24, 2024	1

Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026