Equipment unit · VIN-decoded · NHTSA vPIC

2023 Kenworth T680

1XKYDP9X4PJ251564 · Truck-Tractor · TRUCK
Carriers run under3
38 mo
Inspections6
all-time
OOS inspections0
of 6
First seenJun 28, 2023
WI
Last seenAug 9, 2026
NM
Inspected under 3 different carriers in 38 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

VIN
1XKYDP9X4PJ251564
Make
Kenworth
Model
T680
Model year
2023
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 28, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
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
YDP9X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
251564

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 · 26,022 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 26,022 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.

Federal observation (NHTSA vPIC)

What the federal corpus observed directly for this exact VIN — independent of, and sometimes more specific than, the prefix-level inference above.

Observed model year
2023

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T680

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck-Tractor

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
TRUCK

Observed directly for this VIN via NHTSA vPIC.

GVWR
Class 8: 33,001 lb and above (14,969 kg and above)

Observed directly for this VIN via NHTSA vPIC.

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 28, 2023 – Aug 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 9, 2026NMIII · Driver-only1MADAIG LLC 3070018P1167113/IL
Jul 29, 2026TNIII · Driver-only0MADAIG LLC 3070018P1167113/IL
Jul 28, 2026GAII · Walk-around1MADAIG LLC 3070018P1167113/IL
Jan 15, 2025NCIII · Driver-only0KSM CARRIER GROUP INC 2641210P1167113/IL
Sep 1, 2023UTIII · Driver-only0TRANS LINES INC 2271858P1167113/IL
Jun 28, 2023WIII · Walk-around0KSM CARRIER GROUP INC 2641210P1167113/IL
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MADAIG LLC3070018Jul 28, 2026Aug 9, 20263IL
KSM CARRIER GROUP INC2641210Jun 28, 2023Jan 15, 20252IL
TRANS LINES INC2271858Sep 1, 2023Sep 1, 20231IL
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.
P1167113IL1MADAIG LLCJul 28, 2026Aug 9, 20263
P1167113ILKSM CARRIER GROUP INCJun 28, 2023Jan 15, 20252
P1167113ILTRANS LINES INCSep 1, 2023Sep 1, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 28, 2026