Equipment unit · VIN-decoded · NHTSA vPIC

2025 Kenworth W9 Series

1XKWP49X4SR135711 · Truck-Tractor · TRUCK
W900
Carriers run under2
11 mo
Inspections3
all-time
OOS inspections1
of 3
First seenAug 5, 2025
WA
Last seenJul 29, 2026
WA
Inspected under 2 different carriers in 11 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
1XKWP49X4SR135711
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
Aug 2, 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
WP49X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
135711

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 · 105 decoded VINs at 100.0% prefix purity.

Model
W9 Series

Prefix basis · 105 decoded VINs at 100.0% prefix purity.

Model line
W900

Sourced label · prefix basis 105 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 · Aug 5, 2025 – Jul 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 29, 2026WAII · Walk-around1OOSMTM TRUCKING LLC 4477843RP21956/WA
Feb 4, 2026WAIII · Driver-only0MTM TRUCKING LLC 4477843RP21956/WA
Aug 5, 2025WAIII · Driver-only0RUSTY BRADEEN TRUCKING INC 494089RP21956/WA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MTM TRUCKING LLC4477843Feb 4, 2026Jul 29, 20262WA
RUSTY BRADEEN TRUCKING INC494089Aug 5, 2025Aug 5, 20251WA
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.
RP21956WA1MTM TRUCKING LLCFeb 4, 2026Jul 29, 20262
RP21956WARUSTY BRADEEN TRUCKING INCAug 5, 2025Aug 5, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 2, 2026