Equipment unit · VIN-decoded · NHTSA vPIC

2025 Kenworth W9 Series

1XKWP4TX8SR173550 · Truck-Tractor · TRUCK
W900
Carriers run under2
13 mo
Inspections10
all-time
OOS inspections5
of 10
First seenFeb 14, 2025
MD
Last seenMar 4, 2026
WA
Inspected under 2 different carriers in 13 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
1XKWP4TX8SR173550
Make
Kenworth
Model
W9 Series
Model year
2025
Body class
Truck-Tractor
Vehicle type
TRUCK
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
1XK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
WP4TX

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

Model year candidates
1995 or 2025

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

North American serial sequence
173550

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 · 277 decoded VINs at 100.0% prefix purity.

Model
W9 Series

Prefix basis · 277 decoded VINs at 100.0% prefix purity.

Model line
W900

Sourced label · prefix basis 277 decoded VINs at 100.0% 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
2025

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

  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Feb 14, 2025 – Mar 4, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 4, 2026WAII · Walk-around14OOSHEAVY HAUL KING LLC 4419625PWP2517/OH
Jan 22, 2026KSII · Walk-around4HEAVY HAUL KING LLC 4419625PXC4865/OH
Nov 19, 2025IAIII · Driver-only25OOSHEAVY HAUL TRANSPORT LLC 3507944PXC4865/OH
Jul 10, 2025TNII · Walk-around4HEAVY HAUL TRANSPORT LLC 3507944PXC4865/OH
Jun 14, 2025PAII · Walk-around4HEAVY HAUL TRANSPORT LLC 3507944PXC4865/OH
May 13, 2025WAII · Walk-around2OOSHEAVY HAUL TRANSPORT LLC 3507944PXC4865/OH
May 2, 2025NYI · Full1HEAVY HAUL TRANSPORT LLC 3507944PXC4685/OH
Apr 29, 2025NYII · Walk-around5HEAVY HAUL TRANSPORT LLC 3507944PXC4685/OH
Apr 15, 2025NYII · Walk-around13OOSHEAVY HAUL TRANSPORT LLC 3507944PXC4685/OH
Feb 14, 2025MDII · Walk-around4OOSHEAVY HAUL TRANSPORT LLC 3507944T302773/OH
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HEAVY HAUL KING LLC4419625Jan 22, 2026Mar 4, 20262OH
HEAVY HAUL TRANSPORT LLC3507944Feb 14, 2025Nov 19, 20258OH
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.
PWP2517OHHEAVY HAUL KING LLCMar 4, 2026Mar 4, 20261
PXC4865OHHEAVY HAUL KING LLCJan 22, 2026Jan 22, 20261
PXC4865OHHEAVY HAUL TRANSPORT LLCMay 13, 2025Nov 19, 20254
PXC4685OHHEAVY HAUL TRANSPORT LLCApr 15, 2025May 2, 20253
T302773OHHEAVY HAUL TRANSPORT LLCFeb 14, 2025Feb 14, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026