Equipment unit · VIN-decoded · NHTSA vPIC

2021 Polar tank trailer Polar Tank Trailer

1PMKR4329M1109409 · Trailer · TRAILER
Carriers run under2
25 mo
Inspections4
all-time
OOS inspections0
of 4
First seenFeb 16, 2024
TX
Last seenMar 17, 2026
TX
Inspected under 2 different carriers in 25 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
1PMKR4329M1109409
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 · Feb 16, 2024 – Mar 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 17, 2026TXIV · Special2—WILLIAM HARDING 2408069BY1713/OK
Sep 10, 2024OKIII · Driver-only0—SALT FORK TRANSPORT LLC 2791308BY1713/OK
Jul 22, 2024OKII · Walk-around3—SALT FORK TRANSPORT LLC 2791308BY1713/OK
Feb 16, 2024TXII · Walk-around0—SALT FORK TRANSPORT LLC 2791308BY17B/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WILLIAM HARDING2408069Mar 17, 2026Mar 17, 20261TX
SALT FORK TRANSPORT LLC2791308Feb 16, 2024Sep 10, 20243OK
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.
BY1713OK—WILLIAM HARDINGMar 17, 2026 → Mar 17, 20261
BY1713OK—SALT FORK TRANSPORT LLCJul 22, 2024 → Sep 10, 20242
BY17BOK—SALT FORK TRANSPORT LLCFeb 16, 2024 → Feb 16, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026
2021 Polar tank trailer Polar Tank Trailer — VIN 1PMKR4329M1109409