Equipment unit · VIN-decoded · NHTSA vPIC

1997 Polar Tank Trailer

1PMS44322V1018613 · Trailer · TRAILER
Carriers run under1
34 mo
Inspections5
all-time
OOS inspections2
of 5
First seenAug 16, 2023
TN
Last seenJun 30, 2026
TN
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1PMS44322V1018613
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
1997
Body class
Trailer
Vehicle type
TRAILER
GVWR
Not decoded
Decoded at
Jul 4, 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
S4432

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

Model year candidates
1997 or 2027

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

North American serial sequence
018613

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 · 39 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 39 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
1997

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 · Aug 16, 2023 – Jun 30, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 30, 2026TNII · Walk-around0PASCO PRODUCTS INC 137978512082T/TN
Apr 2, 2026TNII · Walk-around3PASCO PRODUCTS INC 137978512082T/TN
Aug 24, 2024TNI · Full2OOSPASCO PRODUCTS INC 137978512082T/TN
Feb 16, 2024TNI · Full0PASCO PRODUCTS INC 137978512082T/TN
Aug 16, 2023TNI · Full3OOSPASCO PRODUCTS INC 137978T789973/TN
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PASCO PRODUCTS INC137978Aug 16, 2023Jun 30, 20265TN
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.
512082TTN2PASCO PRODUCTS INCFeb 16, 2024Jun 30, 20264
T789973TNPASCO PRODUCTS INCAug 16, 2023Aug 16, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 4, 2026