Equipment unit · VIN-decoded · NHTSA vPIC

1999 Kenworth T600

1XKADB9X0XJ793135 · Truck-Tractor · TRUCK
Carriers run under2
18 mo
Inspections5
all-time
OOS inspections2
of 5
First seenOct 11, 2023
TN
Last seenApr 25, 2025
TX
Inspected under 2 different carriers in 18 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
1XKADB9X0XJ793135
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
Jun 28, 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
ADB9X

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
793135

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 · Oct 11, 2023 – Apr 25, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 25, 2025TXII · Walk-around2OOSRAMROD TRUCKING INC 213372R764157/TX
Sep 14, 2024TXII · Walk-around0SPIRIT TRANSPORT LLC 2949879R488304/TX
Nov 14, 2023OHI · Full1SPIRIT TRANSPORT LLC 2949879R488304/TX
Oct 17, 2023INII · Walk-around0SPIRIT TRANSPORT LLC 2949879R488304/TX
Oct 11, 2023TNI · Full5OOSSPIRIT TRANSPORT LLC 2949879R488304/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RAMROD TRUCKING INC213372Apr 25, 2025Apr 25, 20251TX
SPIRIT TRANSPORT LLC2949879Oct 11, 2023Sep 14, 20244TX
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.
R764157TXRAMROD TRUCKING INCApr 25, 2025Apr 25, 20251
R488304TXSPIRIT TRANSPORT LLCOct 11, 2023Sep 14, 20244
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026