Equipment unit · VIN-decoded · NHTSA vPIC

1995 Kenworth W900

1XKWDB9XXSJ639711 · Truck-Tractor · TRUCK
Carriers run under2
34 mo
Inspections9
all-time
OOS inspections0
of 9
First seenOct 22, 2023
SD
Last seenAug 7, 2026
NM
Inspected under 2 different carriers in 34 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
1XKWDB9XXSJ639711
Make
Kenworth
Model
W900
Model year
1995
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
X · valid

Deterministic · position 9; calculated value X.

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
639711

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
1995

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
W900

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 · Oct 22, 2023 – Aug 7, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 7, 2026NMII · Walk-around0HIGH MOUNTAIN HAULERS LLC 3412909PA31384/MT
Feb 25, 2026UTIII · Driver-only1HIGH MOUNTAIN HAULERS LLC 3412909PA31384/MT
Jan 9, 2026CAII · Walk-around0HIGH MOUNTAIN HAULERS LLC 3412909PA31384/MT
Nov 9, 2025WYIII · Driver-only0HIGH MOUNTAIN HAULERS LLC 3412909PA31384/MT
Sep 14, 2025MTIII · Driver-only0HIGH MOUNTAIN HAULERS LLC 3412909PA31384/MT
Feb 25, 2025COII · Walk-around3HIGH MOUNTAIN HAULERS LLC 3412909PA31384/MT
Oct 4, 2024AZII · Walk-around0HIGH MOUNTAIN HAULERS LLC 3412909PA31384/MT
Apr 4, 2024MTI · Full0GRICE TRUCKING LLC 2831713PA29676/MT
Oct 22, 2023SDIII · Driver-only0GRICE TRUCKING LLC 2831713PA29676/MT
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HIGH MOUNTAIN HAULERS LLC3412909Oct 4, 2024Aug 7, 20267MT
GRICE TRUCKING LLC2831713Oct 22, 2023Apr 4, 20242MT
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.
PA31384MT1HIGH MOUNTAIN HAULERS LLCOct 4, 2024Aug 7, 20267
PA29676MTGRICE TRUCKING LLCOct 22, 2023Apr 4, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026