Equipment unit · VIN-decoded · NHTSA vPIC

1994 Kenworth T600

1XKADB9X1RS633181 · Truck-Tractor · TRUCK
Carriers run under2
27 mo
Inspections10
all-time
OOS inspections3
of 10
First seenNov 14, 2023
TX
Last seenFeb 23, 2026
TX
Inspected under 2 different carriers in 27 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
1XKADB9X1RS633181
Make
Kenworth
Model
T600
Model year
1994
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 19, 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
1 · valid

Deterministic · position 9; calculated value 1.

Model year candidates
1994 or 2024

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

North American serial sequence
633181

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
1994

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 · Nov 14, 2023 – Feb 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 23, 2026TXII · Walk-around3CRISTIAN VELASQUEZ 1953996TWS9843/TX
Jan 28, 2026TXI · Full4OOSCRISTIAN VELASQUEZ 1953996TWS9843/TX
Jan 20, 2026TXI · Full7OOSCRISTIAN VELASQUEZ 1953996TWS9843/TX
Dec 10, 2025TXII · Walk-around5CRISTIAN VELASQUEZ 1953996TWS9843/TX
Nov 19, 2025TXI · Full6CRISTIAN VELASQUEZ 1953996TWS9843/TX
Aug 7, 2025TXII · Walk-around0CRISTIAN VELASQUEZ 1953996TWS9843/TX
Aug 5, 2025TXI · Full7OOSCRISTIAN VELASQUEZ 1953996TWS9843/TX
Jun 11, 2025TXII · Walk-around1CRISTIAN VELASQUEZ 1953996TWS9843/TX
Feb 28, 2025TXII · Walk-around1CRISTIAN VELASQUEZ 1953996TWS9843/TX
Nov 14, 2023TXII · Walk-around5STATEWIDE MATERIALS TRANSPORT LEASING LTD 19361571M20526/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CRISTIAN VELASQUEZ1953996Feb 28, 2025Feb 23, 20269TX
STATEWIDE MATERIALS TRANSPORT LEASING LTD1936157Nov 14, 2023Nov 14, 20231TX
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.
TWS9843TXCRISTIAN VELASQUEZFeb 28, 2025Feb 23, 20269
1M20526TXSTATEWIDE MATERIALS TRANSPORT LEASING LTDNov 14, 2023Nov 14, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026