Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T680

1XKYDP9XXMJ429814 · Truck-Tractor · TRUCK
Carriers run under2
25 mo
Inspections6
all-time
OOS inspections0
of 6
First seenFeb 5, 2024
CO
Last seenMar 20, 2026
KS
Inspected under 2 different carriers in 25 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
1XKYDP9XXMJ429814
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
Jun 24, 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
1XK

Deterministic · VIN positions 1–3.

Vehicle descriptor section
YDP9X

Deterministic · VIN positions 4–8.

Check digit
X · valid

Deterministic · position 9; calculated value X.

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
429814

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 · 26,022 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 26,022 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 · Feb 5, 2024 – Mar 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 20, 2026KSII · Walk-around2KC EXPRESS TRANSPORTATION LLC 3631004G126AA/NJ
May 5, 2025ILIII · Driver-only0BAY AND BAY TRANSFER CO INC 1256303375571/IN
Feb 28, 2025TXII · Walk-around0BAY AND BAY TRANSFER CO INC 1256303375571/IN
Aug 15, 2024UTIII · Driver-only0BAY AND BAY TRANSFER CO INC 1256303375571/IN
Mar 21, 2024KSII · Walk-around0BAY AND BAY TRANSFER CO INC 1256303375571/IN
Feb 5, 2024COIII · Driver-only1BAY AND BAY TRANSFER CO INC 1256303375571/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KC EXPRESS TRANSPORTATION LLC3631004Mar 20, 2026Mar 20, 20261TX
BAY AND BAY TRANSFER CO INC125630Feb 5, 2024May 5, 20255MN
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.
G126AANJKC EXPRESS TRANSPORTATION LLCMar 20, 2026Mar 20, 20261
3375571INBAY AND BAY TRANSFER CO INCFeb 5, 2024May 5, 20255
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026