Equipment unit · VIN-decoded · NHTSA vPIC

2013 Kenworth W9 Series

1NKWL40X9DR343637 · Truck · INCOMPLETE VEHICLE
W900
Carriers run under2
32 mo
Inspections10
all-time
OOS inspections0
of 10
First seenJul 21, 2023
CA
Last seenMar 17, 2026
CA
Inspected under 2 different carriers in 32 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
1NKWL40X9DR343637
Make
Kenworth
Model
W9 Series
Model year
2013
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 18, 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
WL40X

Deterministic · VIN positions 4–8.

Check digit
9 · valid

Deterministic · position 9; calculated value 9.

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
343637

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 · 193 decoded VINs at 98.5% prefix purity.

Model
W9 Series

Prefix basis · 193 decoded VINs at 98.5% prefix purity.

Model line
W900

Sourced label · prefix basis 193 decoded VINs at 98.5% 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
W9 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 · Jul 21, 2023 – Mar 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 17, 2026CAIII · Driver-only0WHAT A DRAG ROADSIDE SERVICE LLC 431624019751F1/CA
Mar 13, 2026CAIII · Driver-only1WHAT A DRAG ROADSIDE SERVICE LLC 431624019751F1/CA
Jan 22, 2026CAIII · Driver-only1WHAT A DRAG ROADSIDE SERVICE LLC 431624019751F1/CA
Sep 18, 2025CAV · Vehicle-only0WHAT A DRAG ROADSIDE SERVICE LLC 431624019751F1/CA
Jul 11, 2025CAIII · Driver-only0RICK VANCE TRUCKING INC 265721919751F1/CA
Jul 2, 2025CAIII · Driver-only0RICK VANCE TRUCKING INC 265721919751F1/CA
Jun 27, 2024CAIII · Driver-only0RICK VANCE TRUCKING INC 265721919751F1/CA
Jun 20, 2024CAII · Walk-around0RICK VANCE TRUCKING INC 265721919751F1/CA
Jun 19, 2024CAII · Walk-around0RICK VANCE TRUCKING INC 265721919751F1/CA
Jul 21, 2023CAII · Walk-around0RICK VANCE TRUCKING INC 265721919751F1/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WHAT A DRAG ROADSIDE SERVICE LLC4316240Sep 18, 2025Mar 17, 20264CA
RICK VANCE TRUCKING INC2657219Jul 21, 2023Jul 11, 20256CA
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.
19751F1CAWHAT A DRAG ROADSIDE SERVICE LLCSep 18, 2025Mar 17, 20264
19751F1CARICK VANCE TRUCKING INCJul 21, 2023Jul 11, 20256
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026