Equipment unit · VIN-decoded · NHTSA vPIC

2025 Kenworth T6 Series

1XKAD99X3SS684423 · Truck-Tractor · TRUCK
Carriers run under2
10 mo
Inspections6
all-time
OOS inspections6
of 6
First seenAug 7, 2023
TX
Last seenJun 20, 2024
TX
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

VIN
1XKAD99X3SS684423
Make
Kenworth
Model
T6 Series
Model year
2025
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 24, 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
AD99X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1995 or 2025

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

North American serial sequence
684423

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
2025

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T6 Series

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

  • 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 · Aug 7, 2023 – Jun 20, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 20, 2024TXII · Walk-around7OOSMARILYN MORENO 4122931SYH4644/TX
Feb 14, 2024TXI · Full17OOSMARILYN MORENO 4122931SYH4644/TX
Jan 18, 2024TXII · Walk-around9OOSMARILYN MORENO 4122931SYH4644/TX
Dec 27, 2023TXII · Walk-around14OOSMARILYN MORENO 4122931SYH4644/TX
Oct 25, 2023TXII · Walk-around8OOSMARILYN MORENO 4122931SYH4644/TX
Aug 7, 2023TXII · Walk-around6OOSMARTHA ALICIA BERMUDEZ 3710295SYH4644/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MARILYN MORENO4122931Oct 25, 2023Jun 20, 20245TX
MARTHA ALICIA BERMUDEZ3710295Aug 7, 2023Aug 7, 20231TX
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.
SYH4644TXMARILYN MORENOOct 25, 2023Jun 20, 20245
SYH4644TXMARTHA ALICIA BERMUDEZAug 7, 2023Aug 7, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026