Equipment unit · VIN-decoded · NHTSA vPIC

1999 Kenworth T800

1NKDL00X5XJ834404 · Truck · INCOMPLETE VEHICLE
Carriers run under2
9 mo
Inspections5
all-time
OOS inspections4
of 5
First seenJul 2, 2025
CT
Last seenApr 14, 2026
CT
Inspected under 2 different carriers in 9 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
1NKDL00X5XJ834404
Make
Kenworth
Model
T800
Model year
1999
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 29, 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
DL00X

Deterministic · VIN positions 4–8.

Check digit
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
1999 or 2029

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

North American serial sequence
834404

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
1999

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T800

Observed directly for this VIN via NHTSA vPIC.

Observed body class
Truck

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 2, 2025 – Apr 14, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 14, 2026CTI · Full11OOSHELEN DARKS LLC 4499660BY44151/CT
Sep 18, 2025CTII · Walk-around11OOSRHEMA DYNAMICS LLC 4419117AB00493/CT
Sep 18, 2025CTII · Walk-around11OOSRHEMA DYNAMICS LLC 4419117AB00493/CT
Sep 18, 2025CTII · Walk-around11OOSRHEMA DYNAMICS LLC 4419117AB00493/CT
Jul 2, 2025CTIII · Driver-only0RHEMA DYNAMICS LLC 4419117AB00493/CT
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HELEN DARKS LLC4499660Apr 14, 2026Apr 14, 20261CT
RHEMA DYNAMICS LLC4419117Jul 2, 2025Sep 18, 20254CT
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.
BY44151CTHELEN DARKS LLCApr 14, 2026Apr 14, 20261
AB00493CT1RHEMA DYNAMICS LLCJul 2, 2025Sep 18, 20254
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026