Equipment unit · VIN-decoded · NHTSA vPIC

2012 Kenworth T6 Series

1XKAD49X3CJ305642 · Truck-Tractor · TRUCK
T600
Carriers run under2
23 mo
Inspections7
all-time
OOS inspections1
of 7
First seenJul 18, 2023
TX
Last seenJun 18, 2025
TX
Inspected under 2 different carriers in 23 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
1XKAD49X3CJ305642
Make
Kenworth
Model
T6 Series
Model year
2012
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
AD49X

Deterministic · VIN positions 4–8.

Check digit
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1982 or 2012

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

North American serial sequence
305642

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 · 5,142 decoded VINs at 90.1% prefix purity.

Model
T6 Series

Prefix basis · 5,142 decoded VINs at 90.1% prefix purity.

Model line
T600

Sourced label · prefix basis 5,142 decoded VINs at 90.1% prefix purity.

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
2012

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

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Jul 18, 2023 – Jun 18, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 18, 2025TXII · Walk-around0UNIFY ENERGY TRANSPORT LLC 4081589R400035/TX
Apr 28, 2025TXI · Full3UNIFY ENERGY TRANSPORT LLC 4081589R400035/TX
Feb 8, 2024TXII · Walk-around0MEZZANO CARRIERS LLC 3724881R400035/TX
Sep 18, 2023TXII · Walk-around1OOSMEZZANO CARRIERS LLC 3724881R400035/TX
Sep 14, 2023TXII · Walk-around0MEZZANO CARRIERS LLC 3724881R400035/TX
Sep 9, 2023TXII · Walk-around3MEZZANO CARRIERS LLC 3724881R400035/TX
Jul 18, 2023TXIII · Driver-only0MEZZANO CARRIERS LLC 3724881R400035/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
UNIFY ENERGY TRANSPORT LLC4081589Apr 28, 2025Jun 18, 20252TX
MEZZANO CARRIERS LLC3724881Jul 18, 2023Feb 8, 20245TX
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.
R400035TXUNIFY ENERGY TRANSPORT LLCApr 28, 2025Jun 18, 20252
R400035TXMEZZANO CARRIERS LLCJul 18, 2023Feb 8, 20245
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026