Equipment unit · VIN-decoded · NHTSA vPIC

2019 Polar Tank Trailer

1PMKA4421K7102101 · Trailer · TRAILER
Carriers run under1
34 mo
Inspections9
all-time
OOS inspections1
of 9
First seenSep 13, 2023
US
Last seenJul 13, 2026
MO
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1PMKA4421K7102101
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
2019
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jun 17, 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
KA442

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1989 or 2019

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

North American serial sequence
102101

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 · 387 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 387 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
2019

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 · Sep 13, 2023 – Jul 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 13, 2026MOII · Walk-around0TRI STAR TRANSPORT LLC 907272518905T/TN
Feb 11, 2026TNII · Walk-around2TRI STAR TRANSPORT LLC 907272518905T/TN
Jul 31, 2025TNIII · Driver-only0TRI STAR TRANSPORT LLC 907272518905T/TN
Mar 24, 2025MOI · Full3OOSTRI STAR TRANSPORT LLC 907272518905T/TN
Feb 27, 2025USI · Full0TRI STAR TRANSPORT LLC 907272518905T/TN
Jan 31, 2025TNI · Full0TRI STAR TRANSPORT LLC 907272518905T/TN
Oct 9, 2024MSI · Full1TRI STAR TRANSPORT LLC 907272518905T/TN
Sep 23, 2024TNI · Full0TRI STAR TRANSPORT LLC 907272518905T/UK
Sep 13, 2023USI · Full2TRI STAR TRANSPORT LLC 907272PT20057/AR
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRI STAR TRANSPORT LLC907272Sep 13, 2023Jul 13, 20269TN
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.
518905TTN2TRI STAR TRANSPORT LLCOct 9, 2024Jul 13, 20267
518905TUKTRI STAR TRANSPORT LLCSep 23, 2024Sep 23, 20241
PT20057ARTRI STAR TRANSPORT LLCSep 13, 2023Sep 13, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 17, 2026