Equipment unit · VIN-decoded · NHTSA vPIC

1NPXD49X0PD601835

Not yet decoded
Carriers run under2
19 mo
Inspections2
all-time
OOS inspections0
of 2
First seenAug 22, 2024
TX
Last seenMar 11, 2026
MO
Inspected under 2 different carriers in 19 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
XD49X

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1993 or 2023

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

North American serial sequence
601835

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 · 1,241 decoded VINs at 100.0% prefix purity.

Model
389

Prefix basis · 1,241 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 · Aug 22, 2024 – Mar 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 11, 2026MOII · Walk-around6PREFERRED TRUCK & TRAILER SALES 2094567R661031/TX
Aug 22, 2024TXII · Walk-around0MASSEY MOTOR FREIGHT LLC 3516769R661031/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PREFERRED TRUCK & TRAILER SALES2094567Mar 11, 2026Mar 11, 20261MI
MASSEY MOTOR FREIGHT LLC3516769Aug 22, 2024Aug 22, 20241TX
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.
R661031TXPREFERRED TRUCK & TRAILER SALESMar 11, 2026Mar 11, 20261
R661031TXMASSEY MOTOR FREIGHT LLCAug 22, 2024Aug 22, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC