Equipment unit · VIN-decoded · NHTSA vPIC

2001 Kenworth T600

3WKAD60X61F512939 · Truck-Tractor · TRUCK
Carriers run under1
10 mo
Inspections7
all-time
OOS inspections4
of 7
First seenSep 8, 2025
TX
Last seenJul 29, 2026
TX
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3WKAD60X61F512939
Make
Kenworth
Model
T600
Model year
2001
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
3WK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
AD60X

Deterministic · VIN positions 4–8.

Check digit
6 · valid

Deterministic · position 9; calculated value 6.

Model year candidates
2001 or 2031

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

North American serial sequence
512939

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
2001

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 8, 2025 – Jul 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 29, 2026TXI · Full12SERGIO GUERRERO MEDINA 338930756AJ4R/TA
May 21, 2026TXI · Full16OOSSERGIO GUERRERO MEDINA 338930756AJ4R/TA
May 14, 2026TXII · Walk-around4SERGIO GUERRERO MEDINA 338930756AJ4R/MX
Apr 10, 2026TXI · Full19OOSSERGIO GUERRERO MEDINA 338930756AJ4R/TA
Jan 29, 2026TXIII · Driver-only1SERGIO GUERRERO MEDINA 338930756AJ4R/TA
Oct 1, 2025TXI · Full11OOSSERGIO GUERRERO MEDINA 338930756AJ4R/MX
Sep 8, 2025TXI · Full11OOSSERGIO GUERRERO MEDINA 338930756AJ4R/MX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SERGIO GUERRERO MEDINA3389307Sep 8, 2025Jul 29, 20267TA
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.
56AJ4RTA1SERGIO GUERRERO MEDINAJan 29, 2026Jul 29, 20264
56AJ4RMXSERGIO GUERRERO MEDINASep 8, 2025May 14, 20263
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026