Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T680

1XKYDP9X0MJ459601 · Truck-Tractor · TRUCK
Carriers run under4
23 mo
Inspections8
all-time
OOS inspections1
of 8
First seen12/07/2023
CA
Last seen11/07/2025
MT
Inspected under 4 different carriers in 23 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
1XKYDP9X0MJ459601
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
06/21/2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
02

Inspection history

Every roadside inspection of this VIN, newest first · 12/07/2023 – 11/07/2025

DateStateLevelViol.OOSCarrier (DOT)Plate
11/07/2025MTIII · Driver-only1—SKYFREE INC 3783546P1253612/IL
07/30/2025OHII · Walk-around2—SKYFREE INC 3783546P1253612/IL
03/11/2025TNIII · Driver-only1—SKYFREE INC 3783546P1253612/IL
12/18/2024ORIII · Driver-only1—ZEN MARK LOGISTICS LLC 4106674P1253612/IL
12/05/2024ORII · Walk-around2—ZEN MARK LOGISTICS LLC 4106674P1253612/IL
11/26/2024WAIII · Driver-only0—UBS CARRIERS INC 4066271P1253612/IL
11/20/2024WAII · Walk-around1OOSUBS CARRIERS INC 4066271P1253612/IL
12/07/2023CAII · Walk-around0—SPECIALIZED SERVICES TRANSPORTATION INC 570779K816326/AR
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SKYFREE INC378354603/11/202511/07/20253IL
ZEN MARK LOGISTICS LLC410667412/05/202412/18/20242OH
UBS CARRIERS INC406627111/20/202411/26/20242IL
SPECIALIZED SERVICES TRANSPORTATION INC57077912/07/202312/07/20231AR
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.
P1253612IL—SKYFREE INC03/11/2025 → 11/07/20253
P1253612IL—ZEN MARK LOGISTICS LLC12/05/2024 → 12/18/20242
P1253612IL—UBS CARRIERS INC11/20/2024 → 11/26/20242
K816326AR—SPECIALIZED SERVICES TRANSPORTATION INC12/07/2023 → 12/07/20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/21/2026