Equipment unit · VIN-decoded · NHTSA vPIC

1998 Polar Tank Trailer

1PMA24424W5001628 · Trailer · TRAILER
Carriers run under1
32 mo
Inspections4
all-time
OOS inspections0
of 4
First seenNov 14, 2023
WA
Last seenJul 3, 2026
MT
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1PMA24424W5001628
Make
Polar Tank Trailer
Model
Polar Tank Trailer
Model year
1998
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
A2442

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1998 or 2028

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

North American serial sequence
001628

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 · 1,078 decoded VINs at 100.0% prefix purity.

Model
Polar Tank Trailer

Prefix basis · 1,078 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
1998

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 · Nov 14, 2023 – Jul 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 3, 2026MTIII · Driver-only0MADDEN ENTERPRISES LLC 2816290TR8114/ID
Apr 25, 2024WAIII · Driver-only2MADDEN ENTERPRISES LLC 2816290TR8114/ID
Dec 18, 2023WAIII · Driver-only1MADDEN ENTERPRISES LLC 2816290TR8114/ID
Nov 14, 2023WAIII · Driver-only2MADDEN ENTERPRISES LLC 2816290TR8114/ID
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MADDEN ENTERPRISES LLC2816290Nov 14, 2023Jul 3, 20264ID
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.
TR8114ID2MADDEN ENTERPRISES LLCNov 14, 2023Jul 3, 20264
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026