Equipment unit · VIN-decoded · NHTSA vPIC

2023 Peterbilt 579

1XPBD49X7PD816158 · Truck-Tractor · TRUCK
Carriers run under2
36 mo
Inspections5
all-time
OOS inspections0
of 5
First seen06/21/2023
TN
Last seen06/02/2026
NY
Inspected under 2 different carriers in 36 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
1XPBD49X7PD816158
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
06/29/2026
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 · 06/21/2023 – 06/02/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
06/02/2026NYIII · Driver-only0—MICHAEL DUFF INC 748927LE56557/QC
07/09/2025NYII · Walk-around0—TRANS-WEST LOGISTICS INC 212131L947745/QC
04/24/2025NYI · Full0—TRANS-WEST LOGISTICS INC 212131L947745/QC
09/28/2023UTIII · Driver-only0—TRANS-WEST LOGISTICS INC 212131L947745/PQ
06/21/2023TNIII · Driver-only0—TRANS-WEST LOGISTICS INC 212131L947745/PQ
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MICHAEL DUFF INC74892706/02/202606/02/20261QC
TRANS-WEST LOGISTICS INC21213106/21/202307/09/20254QC
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.
LE56557QC—MICHAEL DUFF INC06/02/2026 → 06/02/20261
L947745QC—TRANS-WEST LOGISTICS INC04/24/2025 → 07/09/20252
L947745PQ—TRANS-WEST LOGISTICS INC06/21/2023 → 09/28/20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/29/2026