Equipment unit · VIN-decoded · NHTSA vPIC

2025 Kenworth W9 Series

1XKWD40X7SR170099 · Truck-Tractor · TRUCK
W900
Carriers run under1
17 mo
Inspections5
all-time
OOS inspections2
of 5
First seenDec 31, 2024
MS
Last seenMay 12, 2026
LA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XKWD40X7SR170099
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 28, 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
WD40X

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

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
170099

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 · 1,108 decoded VINs at 99.0% prefix purity.

Model
W9 Series

Prefix basis · 1,108 decoded VINs at 99.0% prefix purity.

Model line
W900

Sourced label · prefix basis 1,108 decoded VINs at 99.0% 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 · Dec 31, 2024 – May 12, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 12, 2026LAII · Walk-around3OOSSOUTH MS TRUCKING LLC 3066657521583/MS
Jul 31, 2025LAII · Walk-around1OOSSOUTH MS TRUCKING LLC 3066657A521583/MS
Apr 2, 2025MSIII · Driver-only1SOUTH MS TRUCKING LLC 3066657A521583/MS
Mar 7, 2025LAIII · Driver-only0SOUTH MS TRUCKING LLC 3066657A521583/MS
Dec 31, 2024MSII · Walk-around1SOUTH MS TRUCKING LLC 3066657A521583/MS
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTH MS TRUCKING LLC3066657Dec 31, 2024May 12, 20265MS
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.
521583MSSOUTH MS TRUCKING LLCMay 12, 2026May 12, 20261
A521583MSSOUTH MS TRUCKING LLCDec 31, 2024Jul 31, 20254
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026