Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T680

1XKYDP9XXMJ437041 · Truck-Tractor · TRUCK
Carriers run under2
21 mo
Inspections8
all-time
OOS inspections1
of 8
First seenJan 21, 2024
MD
Last seenOct 30, 2025
NC
Inspected under 2 different carriers in 21 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
1XKYDP9XXMJ437041
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
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
437041

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 · Jan 21, 2024 – Oct 30, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 30, 2025NCIII · Driver-only0DYNAMIC ROUTES LLC 4304909VV8975/NC
Aug 20, 2025NCII · Walk-around0DYNAMIC ROUTES LLC 4304909VV8975/NC
Mar 25, 2025UTIII · Driver-only2DYNAMIC ROUTES LLC 4304909VV8975/NC
Jan 23, 2025NCIII · Driver-only0DYNAMIC ROUTES LLC 4304909VV8975/NC
Jan 13, 2025NCIII · Driver-only1DYNAMIC ROUTES LLC 4304909VV8975/NC
Dec 27, 2024TNIII · Driver-only0DYNAMIC ROUTES LLC 4304909VV8975/NC
Jul 25, 2024MDII · Walk-around0HEARTLAND EXPRESS INC OF IOWA 134697FX9969/IA
Jan 21, 2024MDII · Walk-around1OOSHEARTLAND EXPRESS INC OF IOWA 134697DA3687/IA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DYNAMIC ROUTES LLC4304909Dec 27, 2024Oct 30, 20256NC
HEARTLAND EXPRESS INC OF IOWA134697Jan 21, 2024Jul 25, 20242IA
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.
VV8975NCDYNAMIC ROUTES LLCDec 27, 2024Oct 30, 20256
FX9969IAHEARTLAND EXPRESS INC OF IOWAJul 25, 2024Jul 25, 20241
DA3687IAHEARTLAND EXPRESS INC OF IOWAJan 21, 2024Jan 21, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026