Equipment unit · VIN-decoded · NHTSA vPIC

2023 Polar Tank Trailer

1PMKR4228P1118379 · Trailer · TRAILER
Carriers run under1
28 mo
Inspections5
all-time
OOS inspections1
of 5
First seenJun 27, 2023
IL
Last seenOct 21, 2025
TN
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1PMKR4228P1118379
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2023
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 28, 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
KR422

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

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
118379

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 · 73 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 73 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 · Jun 27, 2023 – Oct 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 21, 2025TNI · Full1OOSRIM GUARD LLC 2965873E800571/MI
Aug 12, 2025NCI · Full0RIM GUARD LLC 2965873E800571/IN
Mar 24, 2025WIIII · Driver-only1RIM GUARD LLC 2965873E800571/MI
Feb 14, 2025ILIII · Driver-only0RIM GUARD LLC 2965873E800571/MI
Jun 27, 2023ILII · Walk-around0RIM GUARD LLC 2965873E800571/MI
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RIM GUARD LLC2965873Jun 27, 2023Oct 21, 20255MI
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.
E800571MIRIM GUARD LLCJun 27, 2023Oct 21, 20254
E800571INRIM GUARD LLCAug 12, 2025Aug 12, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026