Equipment unit · VIN-decoded · NHTSA vPIC

2021 Polar tank trailer Polar Tank Trailer

1PMKR4329M1112844 · Trailer · TRAILER
Carriers run under1
19 mo
Inspections3
all-time
OOS inspections0
of 3
First seenAug 27, 2023
IA
Last seenMar 21, 2025
SD
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1PMKR4329M1112844
Make
Polar tank trailer
Model
Polar Tank Trailer
Model year
2021
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 26, 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 · Aug 27, 2023 – Mar 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 21, 2025SDIII · Driver-only1—MS & SONS CORP 133751KC3472/IA
May 6, 2024IAIII · Driver-only1—MS & SONS CORP 133751KC3472/IA
Aug 27, 2023IAIII · Driver-only2—MS & SONS CORP 133751GZ8919/IA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MS & SONS CORP133751Aug 27, 2023Mar 21, 20253IA
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.
KC3472IA—MS & SONS CORPMay 6, 2024 → Mar 21, 20252
GZ8919IA—MS & SONS CORPAug 27, 2023 → Aug 27, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026