Equipment unit · VIN-decoded · NHTSA vPIC

1NPXX4EX2KD604872

Not yet decoded
Carriers run under2
15 mo
Inspections2
all-time
OOS inspections0
of 2
First seenMar 3, 2025
PA
Last seenJun 10, 2026
PA
Inspected under 2 different carriers in 15 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
1NP

Deterministic · VIN positions 1–3.

Vehicle descriptor section
XX4EX

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

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
604872

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
PETERBILT

Prefix basis · 763 decoded VINs at 100.0% prefix purity.

Model
389

Prefix basis · 763 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.

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 · Mar 3, 2025 – Jun 10, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 10, 2026PAI · Full5DERRY CONSTRUCTION CO INC 499381VCM7133/PA
Mar 3, 2025PAIII · Driver-only0WILLIAM DICKSON INDUSTRIES INC 356775AG78412/PA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DERRY CONSTRUCTION CO INC499381Jun 10, 2026Jun 10, 20261PA
WILLIAM DICKSON INDUSTRIES INC356775Mar 3, 2025Mar 3, 20251PA
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.
VCM7133PADERRY CONSTRUCTION CO INCJun 10, 2026Jun 10, 20261
AG78412PAWILLIAM DICKSON INDUSTRIES INCMar 3, 2025Mar 3, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC