Equipment unit · VIN-decoded · NHTSA vPIC

2013 Kenworth T6 Series

1XKAD49X3DJ344801 · Truck-Tractor · TRUCK
T600
Carriers run under2
21 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJul 22, 2024
TX
Last seenApr 23, 2026
TX
Inspected under 2 different carriers in 21 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
1XKAD49X3DJ344801
Make
Kenworth
Model
T6 Series
Model year
2013
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 10, 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
1983 or 2013

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

North American serial sequence
344801

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
2013

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 22, 2024 – Apr 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 23, 2026TXII · Walk-around3JD YEPEZ TRUCKING LLC 346023579S711N/TX
Feb 25, 2025TXII · Walk-around0DJ MARTINEZ TRUCKING LLC 389342594R988M/TX
Feb 4, 2025TXII · Walk-around5DJ MARTINEZ TRUCKING LLC 389342523N953M/TX
Jul 22, 2024TXII · Walk-around1DJ MARTINEZ TRUCKING LLC 389342511R660M/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JD YEPEZ TRUCKING LLC3460235Apr 23, 2026Apr 23, 20261TX
DJ MARTINEZ TRUCKING LLC3893425Jul 22, 2024Feb 25, 20253TX
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.
79S711NTXJD YEPEZ TRUCKING LLCApr 23, 2026Apr 23, 20261
94R988MTXDJ MARTINEZ TRUCKING LLCFeb 25, 2025Feb 25, 20251
23N953MTXDJ MARTINEZ TRUCKING LLCFeb 4, 2025Feb 4, 20251
11R660MTXDJ MARTINEZ TRUCKING LLCJul 22, 2024Jul 22, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 10, 2026