Equipment unit · VIN-decoded · NHTSA vPIC

54DC4W1B0KS803608

Not yet decoded
Carriers run under1
13 mo
Inspections2
all-time
OOS inspections2
of 2
First seenFeb 28, 2025
MA
Last seenMar 2, 2026
MA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

This VIN has not been decoded yet — the unit's carrier, inspection and plate history below is reconstructed from the FMCSA inspection feed regardless.

Decode evidence & sources

Deterministic structure

These fields come directly from VIN positions and the published checksum calculation, with zero store IO.

World manufacturer identifier
54D

Deterministic · VIN positions 1–3.

Vehicle descriptor section
C4W1B

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

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
803608

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

Not established

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Feb 28, 2025 – Mar 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 2, 2026MAIII · Driver-only4OOSPOLAR BEAR INSULATION CO INC 3359677S95360/MA
Feb 28, 2025MAIII · Driver-only6OOSPOLAR BEAR INSULATION CO INC 3359677S95360/MA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
POLAR BEAR INSULATION CO INC3359677Feb 28, 2025Mar 2, 20262MA
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.
S95360MAPOLAR BEAR INSULATION CO INCFeb 28, 2025Mar 2, 20262
Sources: FMCSA SAFER · L&I · NHTSA vPIC