Equipment unit · VIN-decoded · NHTSA vPIC

1999 Kenworth T600

1XKADR9X4XR784853 · Truck-Tractor · TRUCK
Carriers run under2
26 mo
Inspections4
all-time
OOS inspections1
of 4
First seenDec 30, 2023
TX
Last seenFeb 19, 2026
TX
Inspected under 2 different carriers in 26 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
1XKADR9X4XR784853
Make
Kenworth
Model
T600
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
Jul 10, 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
ADR9X

Deterministic · VIN positions 4–8.

Check digit
4 · valid

Deterministic · position 9; calculated value 4.

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
784853

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
T600

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 · Dec 30, 2023 – Feb 19, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 19, 2026TXII · Walk-around0XLR8 TRUCK LINES LLC 17442301N51109/TX
Sep 4, 2025TXII · Walk-around0XLR8 TRUCK LINES LLC 17442301N51109/TX
Apr 17, 2024TXI · Full7ENSURE TRUCKING INC 22907741N51109/TX
Dec 30, 2023TXII · Walk-around10OOSENSURE TRUCKING INC 2290774R65564/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
XLR8 TRUCK LINES LLC1744230Sep 4, 2025Feb 19, 20262TN
ENSURE TRUCKING INC2290774Dec 30, 2023Apr 17, 20242IL
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.
1N51109TXXLR8 TRUCK LINES LLCSep 4, 2025Feb 19, 20262
1N51109TXENSURE TRUCKING INCApr 17, 2024Apr 17, 20241
R65564TXENSURE TRUCKING INCDec 30, 2023Dec 30, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 10, 2026