Equipment unit · VIN-decoded · NHTSA vPIC

4S9B4DZ4XHS318188

Not yet decoded
Carriers run under2
6 mo
Inspections2
all-time
OOS inspections1
of 2
First seenAug 1, 2023
WY
Last seenFeb 22, 2024
NE
Inspected under 2 different carriers in 6 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

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
4S9

Deterministic · VIN positions 1–3.

Vehicle descriptor section
B4DZ4

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1987 or 2017

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

North American serial sequence
318188

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 · Aug 1, 2023 – Feb 22, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 22, 2024NEIII · Driver-only0BULK TRANSPORT COMPANY EAST INC 172096254256/NE
Aug 1, 2023WYI · Full3OOSBULK TRANSPORT COMPANY WEST INC 260341254256/NE
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BULK TRANSPORT COMPANY EAST INC172096Feb 22, 2024Feb 22, 20241MO
BULK TRANSPORT COMPANY WEST INC260341Aug 1, 2023Aug 1, 20231NE
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.
254256NE2BULK TRANSPORT COMPANY EAST INCFeb 22, 2024Feb 22, 20241
254256NE2BULK TRANSPORT COMPANY WEST INCAug 1, 2023Aug 1, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC