Equipment unit · VIN-decoded · NHTSA vPIC

2012 Kenworth T6 Series

1XKAD49X4CJ307948 · Truck-Tractor · TRUCK
T600
Carriers run under4
29 mo
Inspections5
all-time
OOS inspections2
of 5
First seenApr 9, 2024
IL
Last seenSep 18, 2026
IN
Inspected under 4 different carriers in 29 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
1XKAD49X4CJ307948
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
Jul 26, 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
4 · valid

Deterministic · position 9; calculated value 4.

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
307948

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.

Not established

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Apr 9, 2024 – Sep 18, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 18, 2026INII · Walk-around0—JDSB TRUCKING LLC 3370355SPG349595/IL
Aug 25, 2026INIII · Driver-only1—HORIZON FREIGHT SYSTEM INC 2373603644196/IN
Mar 11, 2026ILI · Full8OOSHORIZON FREIGHT SYSTEM INC 2373603644196/IN
Mar 3, 2025ILII · Walk-around9—UNITED ROAD FREIGHT INC 3660044P1151094/IL
Apr 9, 2024ILI · Full9OOSSEI ACQUISITION LLC 484360P1151094/IL
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JDSB TRUCKING LLC3370355Sep 18, 2026Sep 18, 20261IL
HORIZON FREIGHT SYSTEM INC237360Mar 11, 2026Aug 25, 20262OH
UNITED ROAD FREIGHT INC3660044Mar 3, 2025Mar 3, 20251IL
SEI ACQUISITION LLC484360Apr 9, 2024Apr 9, 20241IL
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.
SPG349595IL1JDSB TRUCKING LLCSep 18, 2026 → Sep 18, 20261
3644196IN1HORIZON FREIGHT SYSTEM INCMar 11, 2026 → Aug 25, 20262
P1151094IL—UNITED ROAD FREIGHT INCMar 3, 2025 → Mar 3, 20251
P1151094IL—SEI ACQUISITION LLCApr 9, 2024 → Apr 9, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026