Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X1PD868482 · Truck-Tractor · TRUCK
Carriers run under2
33 mo
Inspections6
all-time
OOS inspections1
of 6
First seenJul 29, 2023
SD
Last seenApr 10, 2026
MO
Inspected under 2 different carriers in 33 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
1XPBD49X1PD868482
Make
Peterbilt
Model
579
Model year
2023
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 24, 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 · Jul 29, 2023 – Apr 10, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 10, 2026MOIII · Driver-only0—WMK TRANSPORT INC 3495024ZP55843/CA
Aug 28, 2025CAI · Full6OOSWMK TRANSPORT INC 3495024ZP55843/CA
Jul 16, 2025NMIII · Driver-only1—WMK TRANSPORT INC 3495024ZP55843/CA
Apr 29, 2024SCIII · Driver-only2—DART TRANSIT COMPANY 75525P1159621/IL
Sep 3, 2023IAII · Walk-around2—DART TRANSIT COMPANY 75525P1159621/IL
Jul 29, 2023SDIII · Driver-only0—DART TRANSIT COMPANY 75525P1159621/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WMK TRANSPORT INC3495024Jul 16, 2025Apr 10, 20263CA
DART TRANSIT COMPANY75525Jul 29, 2023Apr 29, 20243MN
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.
ZP55843CA—WMK TRANSPORT INCJul 16, 2025 → Apr 10, 20263
P1159621IL—DART TRANSIT COMPANYJul 29, 2023 → Apr 29, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026