Equipment unit · VIN-decoded · NHTSA vPIC

Kenworth W9 Series

1NKWGGGG70J394171 · Incomplete - Glider · INCOMPLETE VEHICLE
W900
Carriers run under1
21 mo
Inspections4
all-time
OOS inspections2
of 4
First seenMar 27, 2024
LA
Last seenDec 18, 2025
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NKWGGGG70J394171
Make
Kenworth
Model
W9 Series
Model year
Body class
Incomplete - Glider
Vehicle type
INCOMPLETE VEHICLE
GVWR
Not decoded
Decoded at
Jul 6, 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
1NK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
WGGGG

Deterministic · VIN positions 4–8.

Check digit
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
Not established

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

North American serial sequence
394171

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 · 753 decoded VINs at 99.9% prefix purity.

Model
W9 Series

Prefix basis · 753 decoded VINs at 99.9% prefix purity.

Model line
W900

Sourced label · prefix basis 753 decoded VINs at 99.9% 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
Not established

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
Incomplete - Glider

Observed directly for this VIN via NHTSA vPIC.

Observed vehicle type
INCOMPLETE VEHICLE

Observed directly for this VIN via NHTSA vPIC.

GVWR
Not established

Observed directly for this VIN via NHTSA vPIC.

Not established

  • model year
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Mar 27, 2024 – Dec 18, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Dec 18, 2025TXII · Walk-around2OOSALPINE SITE SERVICES INC 1450089866XBC/CO
Jul 15, 2025LAII · Walk-around0ALPINE SITE SERVICES INC 1450089866XBC/CO
May 21, 2024TXII · Walk-around1OOSALPINE SITE SERVICES INC 1450089866XBC/CO
Mar 27, 2024LAII · Walk-around0ALPINE SITE SERVICES INC 1450089866XBC/CO
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ALPINE SITE SERVICES INC1450089Mar 27, 2024Dec 18, 20254CO
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.
866XBCCOALPINE SITE SERVICES INCMar 27, 2024Dec 18, 20254
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 6, 2026