Equipment unit · VIN-decoded · NHTSA vPIC

2024 Kenworth T680

1XKYD49X5RJ345745 · Truck-Tractor · TRUCK
Carriers run under4
18 mo
Inspections9
all-time
OOS inspections2
of 9
First seenMay 10, 2024
NM
Last seenNov 12, 2025
TX
Inspected under 4 different carriers in 18 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
1XKYD49X5RJ345745
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 20, 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
5 · valid

Deterministic · position 9; calculated value 5.

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
345745

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 · May 10, 2024 – Nov 12, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 12, 2025TXII · Walk-around0TRUCKING PROZ LLC 3156610243119/KS
Aug 7, 2025WAII · Walk-around1OOSFAST4WARD EXPRESS INC 3138172243119KS/KS
Jul 29, 2025WAII · Walk-around1FAST4WARD EXPRESS INC 3138172243119/KS
May 31, 2025NMII · Walk-around1OOSFAST4WARD EXPRESS INC 3138172243119/KS
Mar 18, 2025ILIII · Driver-only0MHC TRUCK LEASING LLC 339774243119/KS
Oct 24, 2024NMI · Full0A-GAS US INC 1848800243119/KS
Aug 22, 2024TXI · Full0A-GAS US INC 1848800243119/KS
Jul 11, 2024ARII · Walk-around0A-GAS US INC 1848800243119/KS
May 10, 2024NMII · Walk-around1A-GAS US INC 1848800243119/KS
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRUCKING PROZ LLC3156610Nov 12, 2025Nov 12, 20251WI
FAST4WARD EXPRESS INC3138172May 31, 2025Aug 7, 20253IL
MHC TRUCK LEASING LLC339774Mar 18, 2025Mar 18, 20251KS
A-GAS US INC1848800May 10, 2024Oct 24, 20244OH
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.
243119KSTRUCKING PROZ LLCNov 12, 2025Nov 12, 20251
243119KSKSFAST4WARD EXPRESS INCAug 7, 2025Aug 7, 20251
243119KSFAST4WARD EXPRESS INCMay 31, 2025Jul 29, 20252
243119KSMHC TRUCK LEASING LLCMar 18, 2025Mar 18, 20251
243119KSA-GAS US INCMay 10, 2024Oct 24, 20244
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 20, 2026