Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X1PD837264 · Truck-Tractor · TRUCK
Carriers run under2
34 mo
Inspections4
all-time
OOS inspections0
of 4
First seen09/13/2023
WY
Last seen07/10/2026
CA
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
1XPBD49X1PD837264
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
07/14/2026
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 · 09/13/2023 – 07/10/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
07/10/2026CAIII · Driver-only18—DMH LOGISTICS INC 2799897ZP78974/CA
06/26/2026WAIII · Driver-only0—DMH LOGISTICS INC 2799897ZP78974/CA
05/28/2026WAII · Walk-around0—DMH LOGISTICS INC 2799897ZP78974/CA
09/13/2023WYIII · Driver-only0—SPEAR LOGISTICS LLC 3199716P1205379/IL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DMH LOGISTICS INC279989705/28/202607/10/20263CA
SPEAR LOGISTICS LLC319971609/13/202309/13/20231IA
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.
ZP78974CA1DMH LOGISTICS INC05/28/2026 → 07/10/20263
P1205379IL—SPEAR LOGISTICS LLC09/13/2023 → 09/13/20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 07/14/2026