Equipment unit · VIN-decoded · NHTSA vPIC

2018 Kenworth T680

1NKYD39XXJJ195754 · Truck-Tractor · INCOMPLETE VEHICLE
Carriers run under1
18 mo
Inspections4
all-time
OOS inspections1
of 4
First seenJul 24, 2024
WI
Last seenJan 26, 2026
WI
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NKYD39XXJJ195754
Make
Kenworth
Model
T680
Model year
2018
Body class
Truck-Tractor
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 6, 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
1NK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
YD39X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
1988 or 2018

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

North American serial sequence
195754

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 · 667 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 667 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
2018

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
INCOMPLETE VEHICLE

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 · Jul 24, 2024 – Jan 26, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 26, 2026WIII · Walk-around4OOSCONTRACT TRANSPORT SERVICES LLC 23183933886594/IN
Jul 30, 2025WIIII · Driver-only1CONTRACT TRANSPORT SERVICES LLC 231839385541Z/WI
Feb 28, 2025MIIII · Driver-only2CONTRACT TRANSPORT SERVICES LLC 231839385541Z/WI
Jul 24, 2024WIIII · Driver-only1CONTRACT TRANSPORT SERVICES LLC 231839358881X/WI
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CONTRACT TRANSPORT SERVICES LLC2318393Jul 24, 2024Jan 26, 20264WI
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.
3886594INCONTRACT TRANSPORT SERVICES LLCJan 26, 2026Jan 26, 20261
85541ZWICONTRACT TRANSPORT SERVICES LLCFeb 28, 2025Jul 30, 20252
58881XWICONTRACT TRANSPORT SERVICES LLCJul 24, 2024Jul 24, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 6, 2026