Equipment unit · VIN-decoded · NHTSA vPIC

1995 Kenworth T600

1XKADB9X4SJ641979 · Truck-Tractor · TRUCK
Carriers run under2
29 mo
Inspections7
all-time
OOS inspections5
of 7
First seenFeb 8, 2024
TX
Last seenJul 9, 2026
TX
Inspected under 2 different carriers in 29 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
1XKADB9X4SJ641979
Make
Kenworth
Model
T600
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 24, 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
4 · valid

Deterministic · position 9; calculated value 4.

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
641979

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
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 · Feb 8, 2024 – Jul 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 9, 2026TXII · Walk-around1T & C MATERIALS LLC 3965293RGD9223/TX
May 22, 2026TXII · Walk-around5OOST & C MATERIALS LLC 3965293RGD9223/TX
May 14, 2026TXI · Full3OOST & C MATERIALS LLC 3965293RGD9223/TX
Feb 20, 2026TXI · Full3OOST & C MATERIALS LLC 3965293RGD9223/TX
Jan 19, 2026TXII · Walk-around3OOST & C MATERIALS LLC 3965293RGD9223/TX
May 16, 2025TXII · Walk-around2OOST & C MATERIALS LLC 3965293RGD9223/TX
Feb 8, 2024TXII · Walk-around2JOSE ANGEL ORDONEZ 3800694RGD9223/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
T & C MATERIALS LLC3965293May 16, 2025Jul 9, 20266TX
JOSE ANGEL ORDONEZ3800694Feb 8, 2024Feb 8, 20241TX
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.
RGD9223TX1T & C MATERIALS LLCMay 16, 2025Jul 9, 20266
RGD9223TXJOSE ANGEL ORDONEZFeb 8, 2024Feb 8, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026