Equipment unit · VIN-decoded · NHTSA vPIC

2021 Polar tank trailer Polar Tank Trailer

1PMKR4229M1111775 · Trailer · TRAILER
Carriers run under2
26 mo
Inspections4
all-time
OOS inspections1
of 4
First seenApr 9, 2024
CA
Last seenJun 1, 2026
CA
Inspected under 2 different carriers in 26 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
1PMKR4229M1111775
Make
Polar tank trailer
Model
Polar Tank Trailer
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 7, 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 · Apr 9, 2024 – Jun 1, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 1, 2026CAI · Full1—KW TRANSPORTATION LLC 21790864TD3124/CA
Jun 4, 2025CAIII · Driver-only3—KW TRANSPORTATION LLC 21790864TD3124/CA
Nov 14, 2024AZIII · Driver-only1OOSKW TRANSPORTATION LLC 21790864TD3124/CA
Apr 9, 2024CAII · Walk-around0—MARK F JOHNSON 27190864TD3124/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KW TRANSPORTATION LLC2179086Nov 14, 2024Jun 1, 20263NV
MARK F JOHNSON2719086Apr 9, 2024Apr 9, 20241CA
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.
4TD3124CA—KW TRANSPORTATION LLCNov 14, 2024 → Jun 1, 20263
4TD3124CA—MARK F JOHNSONApr 9, 2024 → Apr 9, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026