Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9XXMD749584 · Truck-Tractor · TRUCK
Carriers run under3
26 mo
Inspections6
all-time
OOS inspections2
of 6
First seenApr 29, 2024
NM
Last seenJun 9, 2026
CA
Inspected under 3 different carriers in 26 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
1XPBDP9XXMD749584
Make
Peterbilt
Model
579
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
Jun 25, 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 · Apr 29, 2024 – Jun 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 9, 2026CAIII · Driver-only0—PRIMO EXPRESS TRANSPORT INC 1602185ZP45692/CA
May 7, 2026CAIII · Driver-only0—PRIMO EXPRESS TRANSPORT INC 1602185ZP45692/CA
Apr 16, 2026CAII · Walk-around4—PRIMO EXPRESS TRANSPORT INC 1602185ZP45692/CA
Feb 13, 2025CAIII · Driver-only1—PRIMO EXPRESS TRANSPORT INC 1602185ZP45692/CA
Jun 7, 2024CAI · Full4OOSQUDRAT TRANSPORTATION LLC 4000479ZP21111/CA
Apr 29, 2024NMII · Walk-around1OOSUNIX CARGO CORP 3021041ZP21111/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PRIMO EXPRESS TRANSPORT INC1602185Feb 13, 2025Jun 9, 20264CA
QUDRAT TRANSPORTATION LLC4000479Jun 7, 2024Jun 7, 20241CA
UNIX CARGO CORP3021041Apr 29, 2024Apr 29, 20241IL
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.
ZP45692CA—PRIMO EXPRESS TRANSPORT INCFeb 13, 2025 → Jun 9, 20264
ZP21111CA—QUDRAT TRANSPORTATION LLCJun 7, 2024 → Jun 7, 20241
ZP21111CA—UNIX CARGO CORPApr 29, 2024 → Apr 29, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026