Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X7MD667764 · Truck-Tractor · TRUCK
Carriers run under2
35 mo
Inspections10
all-time
OOS inspections1
of 10
First seen06/15/2023
CA
Last seen05/07/2026
CA
Inspected under 2 different carriers in 35 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
1XPBDP9X7MD667764
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
06/18/2026
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 · 06/15/2023 – 05/07/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
05/07/2026CAI · Full1—MARQUEZ BROTHERS INTERNATIONAL INC 9240019G14799/CA
05/07/2026CAII · Walk-around1—MARQUEZ BROTHERS INTERNATIONAL INC 9240019G14799/CA
02/26/2026CAIII · Driver-only1—MARQUEZ BROTHERS INTERNATIONAL INC 9240019G14799/CA
11/13/2025CAII · Walk-around1—MARQUEZ BROTHERS INTERNATIONAL INC 9240019G14799/CA
06/05/2025CAI · Full5—MARIO A PEREZ 27721659G14799/CA
04/22/2025CAV · Vehicle-only0—MARQUEZ BROTHERS INTERNATIONAL INC 9240019G14799/CA
04/19/2024CAIII · Driver-only0—MARQUEZ BROTHERS INTERNATIONAL INC 9240019G14799/CA
08/31/2023CAI · Full0—MARQUEZ BROTHERS INTERNATIONAL INC 9240019G14799/CA
06/15/2023CAI · Full0—MARQUEZ BROTHERS INTERNATIONAL INC 9240019G14799/CA
06/15/2023CAI · Full1OOSMARQUEZ BROTHERS INTERNATIONAL INC 9240019G14799/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MARQUEZ BROTHERS INTERNATIONAL INC92400106/15/202305/07/20269CA
MARIO A PEREZ277216506/05/202506/05/20251CA
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.
9G14799CA—MARQUEZ BROTHERS INTERNATIONAL INC06/15/2023 → 05/07/20269
9G14799CA—MARIO A PEREZ06/05/2025 → 06/05/20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/18/2026