Equipment unit · VIN-decoded · NHTSA vPIC

2025 Kenworth T680

1XKYD49X4SJ154789 · Truck-Tractor · TRUCK
Carriers run under4
16 mo
Inspections7
all-time
OOS inspections3
of 7
First seenMar 12, 2025
OK
Last seenJul 20, 2026
MT
Inspected under 4 different carriers in 16 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
1XKYD49X4SJ154789
Make
Kenworth
Model
T680
Model year
2025
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 28, 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
4 · valid

Deterministic · position 9; calculated value 4.

Model year candidates
1995 or 2025

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

North American serial sequence
154789

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
2025

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 · Mar 12, 2025 – Jul 20, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 20, 2026MTII · Walk-around5OOSAMERICAN LOGISTICS PRIME LINE INC 3073557P1339951/IL
Jul 20, 2026WAII · Walk-around5OOSAMERICAN LOGISTICS PRIME LINE INC 3073557P1339951/IL
Apr 30, 2026MTIII · Driver-only1DTM AUTO GROUP LLC 4378545P1339951/IL
Apr 6, 2026MOII · Walk-around1ALPHA UNION LLC 4151494P1339951/IL
Feb 4, 2026ILIII · Driver-only0ALPHA UNION LLC 4151494P1339951/IL
Dec 29, 2025WAIII · Driver-only1ALPHA UNION LLC 41514943886122/IN
Mar 12, 2025OKII · Walk-around2OOSK1K TRANS LLC 42823913678132/IN
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
AMERICAN LOGISTICS PRIME LINE INC3073557Jul 20, 2026Jul 20, 20262IL
DTM AUTO GROUP LLC4378545Apr 30, 2026Apr 30, 20261IL
ALPHA UNION LLC4151494Dec 29, 2025Apr 6, 20263IL
K1K TRANS LLC4282391Mar 12, 2025Mar 12, 20251IL
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.
P1339951IL1AMERICAN LOGISTICS PRIME LINE INCJul 20, 2026Jul 20, 20262
P1339951ILDTM AUTO GROUP LLCApr 30, 2026Apr 30, 20261
P1339951ILALPHA UNION LLCFeb 4, 2026Apr 6, 20262
3886122INALPHA UNION LLCDec 29, 2025Dec 29, 20251
3678132INK1K TRANS LLCMar 12, 2025Mar 12, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026