Equipment unit · VIN-decoded · NHTSA vPIC

1999 Polar Tank Trailer

1PMB14227X5001845 · Trailer · TRAILER
Carriers run under4
37 mo
Inspections5
all-time
OOS inspections0
of 5
First seenJun 26, 2023
TX
Last seenJul 4, 2026
TX
Inspected under 4 different carriers in 37 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
1PMB14227X5001845
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
1999
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.
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
B1422

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1999 or 2029

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

North American serial sequence
001845

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 · 83 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 83 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
1999

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 26, 2023 – Jul 4, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 4, 2026TXIII · Driver-only0CONOR LLC 2830935049B334/TX
Jun 8, 2026TXI · Full8ISAAC MARTIN GALVAN CARREON 3395326049B334/TX
Sep 20, 2024TXII · Walk-around1GRUPO INDUSTRIAL COA-NOR SA DE CV 4110303049B334/TX
Apr 24, 2024TXII · Walk-around3DIAMOND FREIGHT FORWARDING LLC 310023988P541M/TX
Jun 26, 2023TXII · Walk-around3DIAMOND FREIGHT FORWARDING LLC 3100239049B334/TX
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CONOR LLC2830935Jul 4, 2026Jul 4, 20261TX
ISAAC MARTIN GALVAN CARREON3395326Jun 8, 2026Jun 8, 20261CH
GRUPO INDUSTRIAL COA-NOR SA DE CV4110303Sep 20, 2024Sep 20, 20241CH
DIAMOND FREIGHT FORWARDING LLC3100239Jun 26, 2023Apr 24, 20242TX
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.
049B334TX2CONOR LLCJul 4, 2026Jul 4, 20261
049B334TXISAAC MARTIN GALVAN CARREONJun 8, 2026Jun 8, 20261
049B334TXGRUPO INDUSTRIAL COA-NOR SA DE CVSep 20, 2024Sep 20, 20241
88P541MTXDIAMOND FREIGHT FORWARDING LLCApr 24, 2024Apr 24, 20241
049B334TXDIAMOND FREIGHT FORWARDING LLCJun 26, 2023Jun 26, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026