Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T680

1XKYD49X8MJ434914 · Truck-Tractor · TRUCK
Carriers run under2
35 mo
Inspections8
all-time
OOS inspections0
of 8
First seenSep 1, 2023
CA
Last seenAug 2, 2026
TX
Inspected under 2 different carriers in 35 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
1XKYD49X8MJ434914
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 25, 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
YD49X

Deterministic · VIN positions 4–8.

Check digit
8 · valid

Deterministic · position 9; calculated value 8.

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
434914

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 · 43,483 decoded VINs at 100.0% prefix purity.

Model
T680

Prefix basis · 43,483 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 · Sep 1, 2023 – Aug 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Aug 2, 2026TXII · Walk-around1JESCO LOGISTICS LLC 2533377R843690/TX
Jul 20, 2026MOII · Walk-around7JESCO LOGISTICS LLC 2533377R843690/TX
Jun 21, 2026TXII · Walk-around1JESCO LOGISTICS LLC 2533377R843690/TX
May 7, 2026NMIII · Driver-only1JESCO LOGISTICS LLC 2533377R843690/TX
Apr 19, 2026TXII · Walk-around0JESCO LOGISTICS LLC 2533377R843690/TX
Feb 28, 2024CAI · Full0MARTEN TRANSPORT LTD 744322483652/IN
Jan 26, 2024CAII · Walk-around0MARTEN TRANSPORT LTD 744322483652/IN
Sep 1, 2023CAII · Walk-around1MARTEN TRANSPORT LTD 744322483652/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
JESCO LOGISTICS LLC2533377Apr 19, 2026Aug 2, 20265TX
MARTEN TRANSPORT LTD74432Sep 1, 2023Feb 28, 20243WI
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.
R843690TX1JESCO LOGISTICS LLCApr 19, 2026Aug 2, 20265
2483652INMARTEN TRANSPORT LTDSep 1, 2023Feb 28, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026