Equipment unit · VIN-decoded · NHTSA vPIC

2023 Polar Tank Trailer

1PMKW4422P6115499 · Trailer · TRAILER
Carriers run under1
23 mo
Inspections3
all-time
OOS inspections0
of 3
First seenDec 12, 2023
MA
Last seenNov 24, 2025
MA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1PMKW4422P6115499
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2023
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.
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
KW442

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

Model year candidates
1993 or 2023

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

North American serial sequence
115499

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 · 5 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 5 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
2023

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 · Dec 12, 2023 – Nov 24, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 24, 2025MAI · Full0KMT ENTERPRISES INC 335413827B6/MA
Jan 14, 2025MAIII · Driver-only1KMT ENTERPRISES INC 335413827B6/MA
Dec 12, 2023MAIII · Driver-only1KMT ENTERPRISES INC 3354138SM27B6/MA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KMT ENTERPRISES INC3354138Dec 12, 2023Nov 24, 20253MA
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.
27B6MAKMT ENTERPRISES INCJan 14, 2025Nov 24, 20252
SM27B6MAKMT ENTERPRISES INCDec 12, 2023Dec 12, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026