Equipment unit · VIN-decoded · NHTSA vPIC

2017 Peterbilt 579

1XPBDP9X5HD441020 · Truck-Tractor · TRUCK
Carriers run under2
9 mo
Inspections3
all-time
OOS inspections2
of 3
First seenSep 25, 2025
CA
Last seenJun 6, 2026
AZ
Inspected under 2 different carriers in 9 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
1XPBDP9X5HD441020
Make
Peterbilt
Model
579
Model year
2017
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 31, 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 · Sep 25, 2025 – Jun 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 6, 2026AZIII · Driver-only1OOSMERCEDES ENTERPRISES LLC 3495660W4A5J6/AZ
May 5, 2026AZII · Walk-around15OOSMERCEDES ENTERPRISES LLC 349566007W9043/AZ
Sep 25, 2025CAII · Walk-around0—STAR TRANSPORT LLC 3775526AN02566/AZ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MERCEDES ENTERPRISES LLC3495660May 5, 2026Jun 6, 20262AZ
STAR TRANSPORT LLC3775526Sep 25, 2025Sep 25, 20251AZ
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.
W4A5J6AZ—MERCEDES ENTERPRISES LLCJun 6, 2026 → Jun 6, 20261
07W9043AZ—MERCEDES ENTERPRISES LLCMay 5, 2026 → May 5, 20261
AN02566AZ—STAR TRANSPORT LLCSep 25, 2025 → Sep 25, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 31, 2026