Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth T680

1XKYDP9X5MJ449033 · Truck-Tractor · TRUCK
Carriers run under3
21 mo
Inspections4
all-time
OOS inspections0
of 4
First seen10/10/2024
CA
Last seen07/18/2026
CA
Inspected under 3 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
1XKYDP9X5MJ449033
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
07/21/2026
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 · 10/10/2024 – 07/18/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
07/18/2026CAIII · Driver-only0—SUPERTRANSPORT LLC 230936553KT7W/MO
03/19/2026CAI · Full0—SUPERTRANSPORT LLC 230936553KT7W/MO
11/10/2025KYII · Walk-around2—DIAMOND GROUP LOGISTICS CO 3043555P1311028/IL
10/10/2024CAII · Walk-around1—SYSTEM TRANSPORT INC 27935RP11465/WA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SUPERTRANSPORT LLC230936503/19/202607/18/20262MO
DIAMOND GROUP LOGISTICS CO304355511/10/202511/10/20251IL
SYSTEM TRANSPORT INC2793510/10/202410/10/20241WA
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.
53KT7WMO1SUPERTRANSPORT LLC03/19/2026 → 07/18/20262
P1311028IL—DIAMOND GROUP LOGISTICS CO11/10/2025 → 11/10/20251
RP11465WA—SYSTEM TRANSPORT INC10/10/2024 → 10/10/20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 07/21/2026