Equipment unit · VIN-decoded · NHTSA vPIC

2017 Peterbilt 579

1XPBD49X3HD422495 · Truck-Tractor · TRUCK
Carriers run under2
35 mo
Inspections3
all-time
OOS inspections1
of 3
First seenAug 3, 2023
CA
Last seenJul 27, 2026
NE
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
1XPBD49X3HD422495
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 · Aug 3, 2023 – Jul 27, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 27, 2026NEIII · Driver-only1—MONZON TRUCKING LLC 30594034C180/WY
Feb 3, 2025OKII · Walk-around17OOSMONZON TRUCKING LLC 3059403PAPER/WY
Aug 3, 2023CAIII · Driver-only0—DAVE GRANT HAY INC 181052Z051283/UT
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MONZON TRUCKING LLC3059403Feb 3, 2025Jul 27, 20262WY
DAVE GRANT HAY INC181052Aug 3, 2023Aug 3, 20231UT
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.
4C180WY1MONZON TRUCKING LLCJul 27, 2026 → Jul 27, 20261
PAPERWY—MONZON TRUCKING LLCFeb 3, 2025 → Feb 3, 20251
Z051283UT—DAVE GRANT HAY INCAug 3, 2023 → Aug 3, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 31, 2026