Equipment unit · VIN-decoded · NHTSA vPIC

2025 Kenworth T680

3WKYDP9X0SF555942 · Truck-Tractor · TRUCK
Carriers run under2
16 mo
Inspections6
all-time
OOS inspections0
of 6
First seenFeb 20, 2025
US
Last seenJun 29, 2026
US
Inspected under 2 different carriers in 16 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
3WKYDP9X0SF555942
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
Jul 4, 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
YDP9X

Deterministic · VIN positions 4–8.

Check digit
0 · valid

Deterministic · position 9; calculated value 0.

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
555942

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 · 334 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 334 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 20, 2025 – Jun 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 29, 2026USI · Full5TRANSPORTES SOTO E HIJOS S A DE C V 82445430AX9K/MX
May 7, 2026TXI · Full5TRANSPORTES SOTO E HIJOS S A DE C V 82445430AX9K/DF
Mar 2, 2026TXII · Walk-around0TRANSPORTES SOTO E HIJOS S A DE C V 82445430AX9K/CI
Feb 19, 2026USI · Full3TRANSPORTES SOTO E HIJOS S A DE C V 82445430AX9K/MX
Mar 17, 2025USI · Full3ALTO TERRA SA DE CV 430031430AX9K/MX
Feb 20, 2025USI · Full4ALTO TERRA SA DE CV 430031430AX9K/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRANSPORTES SOTO E HIJOS S A DE C V824454Feb 19, 2026Jun 29, 20264CI
ALTO TERRA SA DE CV4300314Feb 20, 2025Mar 17, 20252CI
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.
30AX9KMX1TRANSPORTES SOTO E HIJOS S A DE C VFeb 19, 2026Jun 29, 20262
30AX9KDFTRANSPORTES SOTO E HIJOS S A DE C VMay 7, 2026May 7, 20261
30AX9KCITRANSPORTES SOTO E HIJOS S A DE C VMar 2, 2026Mar 2, 20261
30AX9KMXALTO TERRA SA DE CVFeb 20, 2025Mar 17, 20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 4, 2026