Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T680

1XKYD49X6MJ435057 · Truck-Tractor · TRUCK
Carriers run under2
22 mo
Inspections8
all-time
OOS inspections2
of 8
First seenJun 13, 2024
AR
Last seenApr 23, 2026
AL
Inspected under 2 different carriers in 22 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
1XKYD49X6MJ435057
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 21, 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
6 · valid

Deterministic · position 9; calculated value 6.

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
435057

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 · Jun 13, 2024 – Apr 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 23, 2026ALII · Walk-around7QUALITY TRANS LLC 4186928R761020/TX
Apr 21, 2026PAII · Walk-around5OOSQUALITY TRANS LLC 4186928R761020/TX
Apr 18, 2026TXII · Walk-around3QUALITY TRANS LLC 4186928R761020/TX
Oct 9, 2025TXII · Walk-around2OOSQUALITY TRANS LLC 4186928R761020/TX
Jun 28, 2025NMII · Walk-around0QUALITY TRANS LLC 4186928R761020/TX
May 24, 2025TXII · Walk-around2QUALITY TRANS LLC 4186928R761020/TX
May 5, 2025CAII · Walk-around0QUALITY TRANS LLC 4186928R761020/TX
Jun 13, 2024ARIII · Driver-only2MARTEN TRANSPORT LTD 744322167511/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
QUALITY TRANS LLC4186928May 5, 2025Apr 23, 20267TX
MARTEN TRANSPORT LTD74432Jun 13, 2024Jun 13, 20241WI
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.
R761020TXQUALITY TRANS LLCMay 5, 2025Apr 23, 20267
2167511INMARTEN TRANSPORT LTDJun 13, 2024Jun 13, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026