Equipment unit · VIN-decoded · NHTSA vPIC

2007 Kenworth W9 Series

1XKWDB9X17R212023 · Truck-Tractor · TRUCK
Carriers run under2
28 mo
Inspections4
all-time
OOS inspections1
of 4
First seenNov 28, 2023
MN
Last seenMar 26, 2026
IA
Inspected under 2 different carriers in 28 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
1XKWDB9X17R212023
Make
Kenworth
Model
W9 Series
Model year
2007
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 10, 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
WDB9X

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
2007 or 2037

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

North American serial sequence
212023

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
2007

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-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 · Nov 28, 2023 – Mar 26, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 26, 2026IAII · Walk-around6OOSROCKWELL LIVESTOCK LLC 4157612FZ1850/IA
Sep 3, 2025PAIII · Driver-only1ROCKWELL LIVESTOCK LLC 4157612FZ1850/IA
Jun 20, 2024IAIII · Driver-only2KLASSEN TRUCKING LLC 1699079VB1780/IA
Nov 28, 2023MNIII · Driver-only1KLASSEN TRUCKING LLC 1699079VB1780/IA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROCKWELL LIVESTOCK LLC4157612Sep 3, 2025Mar 26, 20262IA
KLASSEN TRUCKING LLC1699079Nov 28, 2023Jun 20, 20242IA
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.
FZ1850IAROCKWELL LIVESTOCK LLCSep 3, 2025Mar 26, 20262
VB1780IAKLASSEN TRUCKING LLCNov 28, 2023Jun 20, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 10, 2026