Equipment unit · VIN-decoded · NHTSA vPIC

2024 Kenworth T680

1XKYD49X7RJ344452 · Truck-Tractor · TRUCK
Carriers run under2
28 mo
Inspections9
all-time
OOS inspections0
of 9
First seenJan 21, 2024
NM
Last seenMay 18, 2026
CA
Inspected under 2 different carriers in 28 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
1XKYD49X7RJ344452
Make
Kenworth
Model
T680
Model year
2024
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
7 · valid

Deterministic · position 9; calculated value 7.

Model year candidates
1994 or 2024

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

North American serial sequence
344452

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
2024

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 – May 18, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 18, 2026CAI · Full0HEARTLAND EXPRESS INC OF IOWA 13469718KT5A/MO
Apr 19, 2026NMII · Walk-around0HEARTLAND EXPRESS INC OF IOWA 13469718KT5A/MO
Apr 12, 2026NMII · Walk-around0HEARTLAND EXPRESS INC OF IOWA 13469718KT5A/MO
Jul 2, 2025KYII · Walk-around0CONTRACT FREIGHTERS INC 7028918KT5A/MO
Feb 9, 2025ARIII · Driver-only0CONTRACT FREIGHTERS INC 7028918KT5A/MO
Sep 30, 2024NMIII · Driver-only1CONTRACT FREIGHTERS INC 7028918KT5A/MO
Aug 25, 2024IAIII · Driver-only1CONTRACT FREIGHTERS INC 7028918KT5A/MO
Mar 10, 2024CAI · Full1CONTRACT FREIGHTERS INC 7028918KT5A/MO
Jan 21, 2024NMII · Walk-around0CONTRACT FREIGHTERS INC 7028918KT5A/MO
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
HEARTLAND EXPRESS INC OF IOWA134697Apr 12, 2026May 18, 20263IA
CONTRACT FREIGHTERS INC70289Jan 21, 2024Jul 2, 20256MO
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.
18KT5AMO1HEARTLAND EXPRESS INC OF IOWAApr 12, 2026May 18, 20263
18KT5AMOCONTRACT FREIGHTERS INCJan 21, 2024Jul 2, 20256
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026