Equipment unit · VIN-decoded · NHTSA vPIC

2013 Kenworth T6 Series

1XKADP9X4DJ346879 · Truck-Tractor · TRUCK
T600
Carriers run under2
26 mo
Inspections7
all-time
OOS inspections0
of 7
First seenJul 12, 2023
AL
Last seenSep 11, 2025
AL
Inspected under 2 different carriers in 26 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
1XKADP9X4DJ346879
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
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
ADP9X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
346879

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 · 1,080 decoded VINs at 93.3% prefix purity.

Model
T6 Series

Prefix basis · 1,080 decoded VINs at 93.3% prefix purity.

Model line
T600

Sourced label · prefix basis 1,080 decoded VINs at 93.3% 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 12, 2023 – Sep 11, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 11, 2025ALIII · Driver-only1M & M TRANSPORTATION LLC 23444731184191/AL
Apr 9, 2025ALII · Walk-around0SMI STEEL LLC 2755081184191/AL
Jan 16, 2025ALII · Walk-around0SMI STEEL LLC 2755081184191/AL
May 1, 2024ALII · Walk-around2SMI STEEL LLC 2755081184191/AL
Feb 13, 2024ALII · Walk-around0SMI STEEL LLC 2755081184191/AL
Sep 28, 2023ALII · Walk-around2SMI STEEL LLC 2755081184191/AL
Jul 12, 2023ALII · Walk-around0SMI STEEL LLC 2755081184191/AL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
M & M TRANSPORTATION LLC2344473Sep 11, 2025Sep 11, 20251AL
SMI STEEL LLC275508Jul 12, 2023Apr 9, 20256TX
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.
1184191ALM & M TRANSPORTATION LLCSep 11, 2025Sep 11, 20251
1184191ALSMI STEEL LLCJul 12, 2023Apr 9, 20256
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026