Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBDP9X4PD887383 · Truck-Tractor · TRUCK
Carriers run under2
33 mo
Inspections12
all-time
OOS inspections1
of 12
First seenOct 10, 2023
MA
Last seenJul 1, 2026
IN
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
1XPBDP9X4PD887383
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 19, 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 · Oct 10, 2023 – Jul 1, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 1, 2026INIII · Driver-only2—SUCCESSOR INC 3429258PXB5004/OH
Jul 1, 2026INIII · Driver-only2—SUCCESSOR INC 3429258PXB5004/OH
Jan 29, 2026CAI · Full2—SUCCESSOR INC 3429258PXB5004/OH
Jan 2, 2026CAII · Walk-around0—SUCCESSOR INC 3429258PXB5004/OH
Dec 17, 2025NMII · Walk-around1OOSSUCCESSOR INC 3429258PXB5004/OH
Nov 11, 2024WAII · Walk-around2—SUCCESSOR INC 3429258PXB5004/OH
Aug 11, 2024CAIII · Driver-only1—SIMONA INC 3886253AH36817/PA
Jul 10, 2024NMII · Walk-around0—SIMONA INC 3886253AH36817/PA
Mar 8, 2024TNI · Full1—SIMONA INC 3886253AH36817/UK
Jan 3, 2024COI · Full1—SIMONA INC 3886253AH36817/PA
Dec 4, 2023IAIII · Driver-only1—SIMONA INC 3886253AH36817/PA
Oct 10, 2023MAIII · Driver-only2—SIMONA INC 3886253AH36817/PA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SUCCESSOR INC3429258Nov 11, 2024Jul 1, 20266DE
SIMONA INC3886253Oct 10, 2023Aug 11, 20246PA
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.
PXB5004OH1SUCCESSOR INCNov 11, 2024 → Jul 1, 20266
AH36817PA—SIMONA INCOct 10, 2023 → Aug 11, 20245
AH36817UK—SIMONA INCMar 8, 2024 → Mar 8, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 19, 2026