Equipment unit · VIN-decoded · NHTSA vPIC

2005 Kenworth T600

3WKAD40X55F620639 · Truck-Tractor · TRUCK
Carriers run under1
23 mo
Inspections14
all-time
OOS inspections6
of 14
First seenNov 24, 2023
US
Last seenOct 1, 2025
US
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3WKAD40X55F620639
Make
Kenworth
Model
T600
Model year
2005
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 16, 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
5 · valid

Deterministic · position 9; calculated value 5.

Model year candidates
2005 or 2035

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

North American serial sequence
620639

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
2005

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 24, 2023 – Oct 1, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 1, 2025USI · Full12OOSFEDERICO GONZALEZ GARZA 742719WB5579C/MX
Apr 1, 2025TXII · Walk-around5OOSFEDERICO GONZALEZ GARZA 742719WB5579C/TA
Mar 21, 2025USII · Walk-around0FEDERICO GONZALEZ GARZA 742719WB5579C/TA
Jan 21, 2025USII · Walk-around12OOSFEDERICO GONZALEZ GARZA 742719WD4779B/MX
Jan 9, 2025USII · Walk-around1FEDERICO GONZALEZ GARZA 742719WD4779B/MX
Dec 5, 2024TXI · Full14OOSFEDERICO GONZALEZ GARZA 742719WD4779B/TA
Nov 21, 2024TXII · Walk-around8OOSFEDERICO GONZALEZ GARZA 742719WD4779B/TA
Mar 14, 2024USI · Full3FEDERICO GONZALEZ GARZA 742719WD4779B/MX
Mar 8, 2024USII · Walk-around3OOSFEDERICO GONZALEZ GARZA 742719WD4779B/MX
Feb 20, 2024USII · Walk-around0FEDERICO GONZALEZ GARZA 742719WD4779B/MX
Jan 19, 2024USII · Walk-around1FEDERICO GONZALEZ GARZA 742719WD4779B/TA
Jan 9, 2024USII · Walk-around0FEDERICO GONZALEZ GARZA 742719WD4779B/MX
Dec 12, 2023USII · Walk-around0FEDERICO GONZALEZ GARZA 742719WD4779B/MX
Nov 24, 2023USII · Walk-around0FEDERICO GONZALEZ GARZA 742719WD4779B/MX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FEDERICO GONZALEZ GARZA742719Nov 24, 2023Oct 1, 202514TA
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.
WB5579CMXFEDERICO GONZALEZ GARZAOct 1, 2025Oct 1, 20251
WB5579CTAFEDERICO GONZALEZ GARZAMar 21, 2025Apr 1, 20252
WD4779BMXFEDERICO GONZALEZ GARZANov 24, 2023Jan 21, 20258
WD4779BTAFEDERICO GONZALEZ GARZAJan 19, 2024Dec 5, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 16, 2026