Equipment unit · VIN-decoded · NHTSA vPIC

2023 Polar tank trailer Polar Tank Trailer

3H6KF4326P3118262 · Trailer · TRAILER
Carriers run under2
30 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJun 14, 2023
OK
Last seenDec 16, 2025
OK
Inspected under 2 different carriers in 30 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.
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3H6KF4326P3118262
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.
02

Inspection history

Every roadside inspection of this VIN, newest first · Jun 14, 2023 – Dec 16, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 16, 2025OKII · Walk-around0—QUEST LINER INC 1609038875282/WI
Dec 16, 2025WIIII · Driver-only1—KNP TRANSPORT LLC 1703426875282/WI
May 24, 2024ILII · Walk-around0—QUEST LINER INC 1609038817603/WI
Jun 14, 2023OKII · Walk-around0—QUEST LINER INC 1609038817603/WI
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
QUEST LINER INC1609038Jun 14, 2023Dec 16, 20253IA
KNP TRANSPORT LLC1703426Dec 16, 2025Dec 16, 20251WI
Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.
04

Plate & unit-number history

The same truck under different plate registrations across carriers

PlateState / prov.Unit no.CarrierDate rangeInsp.
875282WI—QUEST LINER INCDec 16, 2025 → Dec 16, 20251
875282WI—KNP TRANSPORT LLCDec 16, 2025 → Dec 16, 20251
817603WI—QUEST LINER INCJun 14, 2023 → May 24, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026