Equipment unit · VIN-decoded · NHTSA vPIC

2018 Peterbilt 579

1XPBAP9XXJD480250 · Truck-Tractor · TRUCK
Carriers run under2
29 mo
Inspections14
all-time
OOS inspections3
of 14
First seenFeb 13, 2024
TX
Last seenJul 24, 2026
TX
Inspected under 2 different carriers in 29 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
1XPBAP9XXJD480250
Make
Peterbilt
Model
579
Model year
2018
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 17, 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 · Feb 13, 2024 – Jul 24, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 24, 2026TXII · Walk-around11—SIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/GJ
Jul 17, 2026TXI · Full6—SIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/GJ
Jun 10, 2026TXII · Walk-around1—SIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/GJ
Jun 4, 2026TXI · Full4—SIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/GJ
May 28, 2026TXI · Full16—SIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/GJ
May 19, 2026TXII · Walk-around3—SIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/TA
Apr 30, 2026TXI · Full10OOSSIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/GJ
Mar 27, 2026TXII · Walk-around1—SIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/TA
Feb 13, 2026TXII · Walk-around0—SIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/TA
Dec 6, 2025TXIII · Driver-only0—SIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/MX
Nov 28, 2025TXII · Walk-around9OOSSIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/MX
Oct 18, 2025USIII · Driver-only1—SIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/MX
Oct 18, 2025USIII · Driver-only2OOSSIPHRA MIRIAM CHAVEZ VARGAS 439904142ES9W/MX
Feb 13, 2024TXI · Full5—TAMCO HAULING LLC 32493981N31082/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SIPHRA MIRIAM CHAVEZ VARGAS4399041Oct 18, 2025Jul 24, 202613TA
TAMCO HAULING LLC3249398Feb 13, 2024Feb 13, 20241TX
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.
42ES9WGJ1SIPHRA MIRIAM CHAVEZ VARGASApr 30, 2026 → Jul 24, 20266
42ES9WTA—SIPHRA MIRIAM CHAVEZ VARGASFeb 13, 2026 → May 19, 20263
42ES9WMX—SIPHRA MIRIAM CHAVEZ VARGASOct 18, 2025 → Dec 6, 20254
1N31082TX—TAMCO HAULING LLCFeb 13, 2024 → Feb 13, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 17, 2026