Equipment unit · VIN-decoded · NHTSA vPIC

1XKYD49X0MJ446426

Not yet decoded
Carriers run under2
10 mo
Inspections2
all-time
OOS inspections0
of 2
First seenJun 1, 2025
MT
Last seenApr 13, 2026
IA
Inspected under 2 different carriers in 10 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
1XK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
YD49X

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1991 or 2021

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

North American serial sequence
446426

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
KENWORTH

Prefix basis · 43,483 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 43,483 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 · Jun 1, 2025 – Apr 13, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 13, 2026IAIII · Driver-only3DAVID LAMAR ZIMMERMAN 122780499058Z/WI
Jun 1, 2025MTIII · Driver-only2PRESTON O'DAY LLC 3600086PR49745/SD
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DAVID LAMAR ZIMMERMAN1227804Apr 13, 2026Apr 13, 20261WI
PRESTON O'DAY LLC3600086Jun 1, 2025Jun 1, 20251SD
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.
99058ZWI1DAVID LAMAR ZIMMERMANApr 13, 2026Apr 13, 20261
PR49745SDPRESTON O'DAY LLCJun 1, 2025Jun 1, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC