Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T680

3WKYD40X3MF517197 · Truck-Tractor · TRUCK
Carriers run under2
24 mo
Inspections3
all-time
OOS inspections0
of 3
First seenJun 26, 2023
TX
Last seenJun 13, 2025
TX
Inspected under 2 different carriers in 24 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
3WKYD40X3MF517197
Make
Kenworth
Model
T680
Model year
2021
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
3 · valid

Deterministic · position 9; calculated value 3.

Model year candidates
1991 or 2021

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

North American serial sequence
517197

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
2021

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 · Jun 26, 2023 – Jun 13, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 13, 2025TXII · Walk-around1TR TANK TRUCK SA DE CV 259610227BF4X/MX
Dec 13, 2023TXII · Walk-around1ENERGETICOS SAN ROBERTO SA DE CV 304440515AP8D/MX
Jun 26, 2023TXI · Full5ENERGETICOS SAN ROBERTO SA DE CV 304440515AP8D/MX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TR TANK TRUCK SA DE CV2596102Jun 13, 2025Jun 13, 20251NL
ENERGETICOS SAN ROBERTO SA DE CV3044405Jun 26, 2023Dec 13, 20232NL
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.
27BF4XMXTR TANK TRUCK SA DE CVJun 13, 2025Jun 13, 20251
15AP8DMXENERGETICOS SAN ROBERTO SA DE CVJun 26, 2023Dec 13, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 8, 2026