Equipment unit · VIN-decoded · NHTSA vPIC

2025 Kenworth T680

3WKYD40X1SF548221 · Truck-Tractor · TRUCK
Carriers run under1
9 mo
Inspections3
all-time
OOS inspections1
of 3
First seenFeb 6, 2025
NM
Last seenNov 28, 2025
AZ
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
3WKYD40X1SF548221
Make
Kenworth
Model
T680
Model year
2025
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Aug 8, 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
YD40X

Deterministic · VIN positions 4–8.

Check digit
1 · valid

Deterministic · position 9; calculated value 1.

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
548221

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.

Make
KENWORTH

Prefix basis · 749 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 749 decoded VINs at 100.0% prefix purity.

Model line
Not established

No sourced model-line label is established.

No source established for this field.

Generation
Not established

No sourced generation label is established.

No source established for this field.

Cab type
Not established

No sourced cab label is established.

No source established for this field.

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
2025

Observed directly for this VIN via NHTSA vPIC.

Observed make
KENWORTH

Observed directly for this VIN via NHTSA vPIC.

Observed model
T680

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

  • model line
  • generation
  • cab type

These are withheld claims, not negative findings.

02

Inspection history

Every roadside inspection of this VIN, newest first · Feb 6, 2025 – Nov 28, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 28, 2025AZII · Walk-around1OOSTSJ INTERNATIONAL SERVICES INC 3035414R760117/TX
Jun 2, 2025IAIII · Driver-only1TSJ INTERNATIONAL SERVICES INC 3035414R760117/TX
Feb 6, 2025NMII · Walk-around0TSJ INTERNATIONAL SERVICES INC 3035414R760117/TX
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TSJ INTERNATIONAL SERVICES INC3035414Feb 6, 2025Nov 28, 20253TX
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.
R760117TXTSJ INTERNATIONAL SERVICES INCFeb 6, 2025Nov 28, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 8, 2026