Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49XXPD841488 · Truck-Tractor · TRUCK
Carriers run under2
34 mo
Inspections7
all-time
OOS inspections1
of 7
First seenAug 10, 2023
TX
Last seenJun 17, 2026
AZ
Inspected under 2 different carriers in 34 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
1XPBD49XXPD841488
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 23, 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 · Aug 10, 2023 – Jun 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 17, 2026AZIII · Driver-only0—SKYWAY EXPRESS LLC 1876874R814417/TX
Feb 8, 2025CAII · Walk-around0—TRANSBAY XPRESS INC 1357829YP79934/CA
Feb 4, 2025TXII · Walk-around3OOSTRANSBAY XPRESS INC 1357829YP79934/CA
Jan 16, 2025CAIII · Driver-only0—TRANSBAY XPRESS INC 1357829YP79934/CA
Dec 13, 2023NMII · Walk-around0—TRANSBAY XPRESS INC 1357829YP79934/CA
Nov 19, 2023NMIII · Driver-only0—TRANSBAY XPRESS INC 1357829YP79934/CA
Aug 10, 2023TXII · Walk-around1—TRANSBAY XPRESS INC 1357829YP79934/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SKYWAY EXPRESS LLC1876874Jun 17, 2026Jun 17, 20261TX
TRANSBAY XPRESS INC1357829Aug 10, 2023Feb 8, 20256CA
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.
R814417TX1SKYWAY EXPRESS LLCJun 17, 2026 → Jun 17, 20261
YP79934CA—TRANSBAY XPRESS INCAug 10, 2023 → Feb 8, 20256
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 23, 2026