Equipment unit · VIN-decoded · NHTSA vPIC

2004 Kenworth T600

3WKAD40X24F613775 · Truck-Tractor · TRUCK
Carriers run under2
32 mo
Inspections8
all-time
OOS inspections7
of 8
First seenSep 19, 2023
TX
Last seenMay 20, 2026
TX
Inspected under 2 different carriers in 32 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
3WKAD40X24F613775
Make
Kenworth
Model
T600
Model year
2004
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 21, 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
3WK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AD40X

Deterministic · VIN positions 4–8.

Check digit
2 · valid

Deterministic · position 9; calculated value 2.

Model year candidates
2004 or 2034

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

North American serial sequence
613775

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
2004

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 · Sep 19, 2023 – May 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 20, 2026TXI · Full17OOSREFRIGERADOS SAN-REY SA DE CV 237662842AB4H/TA
Apr 1, 2026TXI · Full19OOSREFRIGERADOS SAN-REY SA DE CV 237662842AB4H/TA
Aug 22, 2024TXII · Walk-around8OOSJOSE INES RICO HERNANDEZ 298170942AB4H/MX
Jun 16, 2024TXII · Walk-around12OOSJOSE INES RICO HERNANDEZ 298170942AB4H/TA
May 19, 2024TXII · Walk-around13OOSJOSE INES RICO HERNANDEZ 298170942AB4H/TA
Feb 10, 2024TXII · Walk-around12JOSE INES RICO HERNANDEZ 298170942AB4H/MX
Jan 7, 2024TXII · Walk-around8OOSJOSE INES RICO HERNANDEZ 298170942AB4H/TA
Sep 19, 2023TXII · Walk-around16OOSJOSE INES RICO HERNANDEZ 298170942AB4H/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
REFRIGERADOS SAN-REY SA DE CV2376628Apr 1, 2026May 20, 20262TA
JOSE INES RICO HERNANDEZ2981709Sep 19, 2023Aug 22, 20246TA
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.
42AB4HTAREFRIGERADOS SAN-REY SA DE CVApr 1, 2026May 20, 20262
42AB4HMXJOSE INES RICO HERNANDEZSep 19, 2023Aug 22, 20243
42AB4HTAJOSE INES RICO HERNANDEZJan 7, 2024Jun 16, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026