Equipment unit · VIN-decoded · NHTSA vPIC

1999 Kenworth W900

1XKWDR9X0XR797508 · Truck-Tractor · TRUCK
Carriers run under2
15 mo
Inspections5
all-time
OOS inspections0
of 5
First seenMar 11, 2025
MS
Last seenJun 25, 2026
CO
Inspected under 2 different carriers in 15 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
1XKWDR9X0XR797508
Make
Kenworth
Model
W900
Model year
1999
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 30, 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
WDR9X

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

Model year candidates
1999 or 2029

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

North American serial sequence
797508

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
1999

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 · Mar 11, 2025 – Jun 25, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 25, 2026COII · Walk-around3SKILL TRANSPORTATION LLC 2899207R459959/TX
Dec 4, 2025TXI · Full1MOB CARRIERS INC 2078484R459959/TX
Dec 3, 2025TXI · Full2MOB CARRIERS INC 2078484R459959/TX
Apr 7, 2025ILII · Walk-around1MOB CARRIERS INC 2078484R459959/TX
Mar 11, 2025MSII · Walk-around3MOB CARRIERS INC 2078484R459959/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SKILL TRANSPORTATION LLC2899207Jun 25, 2026Jun 25, 20261TX
MOB CARRIERS INC2078484Mar 11, 2025Dec 4, 20254TX
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.
R459959TX1SKILL TRANSPORTATION LLCJun 25, 2026Jun 25, 20261
R459959TXMOB CARRIERS INCMar 11, 2025Dec 4, 20254
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 30, 2026