Equipment unit · VIN-decoded · NHTSA vPIC

2015 Polar Tank Trailer

1PMC44221F1044367 · Trailer · TRAILER
Carriers run under3
29 mo
Inspections7
all-time
OOS inspections1
of 7
First seenOct 2, 2023
IL
Last seenMar 30, 2026
IL
Inspected under 3 different carriers in 29 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
1PMC44221F1044367
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2015
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 21, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
1PM

Deterministic · VIN positions 1–3.

Vehicle descriptor section
C4422

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1985 or 2015

Position 10 repeats every 30 years; both candidates are retained and neither is silently selected.

North American serial sequence
044367

Deterministic · positions 12–17 for a North American WMI.

Sourced platform inference

The prefix store publishes only at support ≥ 3 and purity ≥ 90%. Prefix confidence is shown beside every established platform claim.

Make
POLAR TANK TRAILER

Prefix basis · 21 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 21 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2015

Observed directly for this VIN via NHTSA vPIC.

Observed make
POLAR TANK TRAILER

Observed directly for this VIN via NHTSA vPIC.

Observed model
Polar Tank Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Trailer

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRAILER

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Oct 2, 2023 – Mar 30, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 30, 2026ILII · Walk-around0KEMIRA WATER SOLUTIONS INC 2769721SP770HPW/IN
Sep 10, 2025ILI · Full0KEMIRA WATER SOLUTIONS INC 2769721SP770HPW/IN
May 15, 2025MIII · Walk-around0KEMIRA WATER SOLUTIONS INC 2769721SP770HPW/IN
Oct 18, 2024ILII · Walk-around1OOSKEMIRA WATER SOLUTIONS INC 2769721SP770HPW/IN
Aug 29, 2024IAII · Walk-around0KEMIRA WATER SOLUTIONS INC 2769721SP770HPW/IN
Mar 26, 2024ILII · Walk-around1JX LEASING INC 835450SP770HPW/IN
Oct 2, 2023ILII · Walk-around0BROWN TRUCK LEASING CORP 388533SP770HPW/IN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KEMIRA WATER SOLUTIONS INC2769721Aug 29, 2024Mar 30, 20265IN
JX LEASING INC835450Mar 26, 2024Mar 26, 20241WI
BROWN TRUCK LEASING CORP388533Oct 2, 2023Oct 2, 20231IA
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.
SP770HPWINKEMIRA WATER SOLUTIONS INCAug 29, 2024Mar 30, 20265
SP770HPWINJX LEASING INCMar 26, 2024Mar 26, 20241
SP770HPWINBROWN TRUCK LEASING CORPOct 2, 2023Oct 2, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026