Equipment unit · VIN-decoded · NHTSA vPIC

2004 Kenworth T600

1XKADB9XX4J050851 · Truck-Tractor · TRUCK
Carriers run under2
19 mo
Inspections3
all-time
OOS inspections0
of 3
First seenOct 20, 2024
WA
Last seenMay 18, 2026
UT
Inspected under 2 different carriers in 19 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
1XKADB9XX4J050851
Make
Kenworth
Model
T600
Model year
2004
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
ADB9X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

Model year candidates
2004 or 2034

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

North American serial sequence
050851

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.

Not established

No supported platform claim is established for this prefix

The resolver answered successfully but returned no row above the evidence floor. This does not mean the vehicle has no platform or that no data exists; it means this store cannot make the claim.

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
2004

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T600

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

  • platform make
  • platform model
  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Oct 20, 2024 – May 18, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 18, 2026UTIII · Driver-only1TOTAL TRANSPORTATION SOLUTIONS CORP 2031902RP13861/WA
May 7, 2025WYIII · Driver-only0TOTAL TRANSPORTATION SOLUTIONS CORP 2031902RP13861/WA
Oct 20, 2024WAIII · Driver-only3STAR TRUCK LLC 3560527RP13861/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TOTAL TRANSPORTATION SOLUTIONS CORP2031902May 7, 2025May 18, 20262OK
STAR TRUCK LLC3560527Oct 20, 2024Oct 20, 20241WA
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.
RP13861WATOTAL TRANSPORTATION SOLUTIONS CORPMay 7, 2025May 18, 20262
RP13861WASTAR TRUCK LLCOct 20, 2024Oct 20, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026