Equipment unit · VIN-decoded · NHTSA vPIC

2012 Kenworth T8 Series

1NKDX4TX6CJ313256 · Truck · INCOMPLETE VEHICLE
T800
Carriers run under2
33 mo
Inspections10
all-time
OOS inspections0
of 10
First seenOct 16, 2023
PA
Last seenJul 22, 2026
DE
Inspected under 2 different carriers in 33 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
1NKDX4TX6CJ313256
Make
Kenworth
Model
T8 Series
Model year
2012
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
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
1NK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
DX4TX

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

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
313256

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 · 453 decoded VINs at 95.8% prefix purity.

Model
T8 Series

Prefix basis · 453 decoded VINs at 95.8% prefix purity.

Model line
T800

Sourced label · prefix basis 453 decoded VINs at 95.8% 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
T8 Series

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

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Oct 16, 2023 – Jul 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 22, 2026DEIII · Driver-only1JOOS01 LLC 3258606388ED16/MD
Jun 16, 2026MDIII · Driver-only1JOOS01 LLC 3258606388ED16/MD
Jun 16, 2026MDIII · Driver-only1JOOS01 LLC 3258606388ED16/MD
May 21, 2026MDII · Walk-around1JOOS01 LLC 3258606388ED16/MD
Mar 27, 2026DEIII · Driver-only1JOOS01 LLC 3258606388ED16/MD
Jan 13, 2026DEIII · Driver-only0JOOS01 LLC 3258606388ED16/MD
Dec 29, 2025DEIII · Driver-only0JOOS01 LLC 3258606388ED16/MD
Dec 10, 2025MDII · Walk-around3JOOS01 LLC 3258606388ED16/MD
Sep 12, 2025DEIII · Driver-only1JOOS01 LLC 32586064429719/PA
Oct 16, 2023PAIII · Driver-only3SAMMY J DUNN 967993ZSR6461/PA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JOOS01 LLC3258606Sep 12, 2025Jul 22, 20269MD
SAMMY J DUNN967993Oct 16, 2023Oct 16, 20231PA
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.
388ED16MD1JOOS01 LLCDec 10, 2025Jul 22, 20268
4429719PAJOOS01 LLCSep 12, 2025Sep 12, 20251
ZSR6461PASAMMY J DUNNOct 16, 2023Oct 16, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026