Equipment unit · VIN-decoded · NHTSA vPIC

2019 Peterbilt 579

1NPBL79X6KD626049 · Truck · INCOMPLETE VEHICLE
Carriers run under2
12 mo
Inspections4
all-time
OOS inspections0
of 4
First seenJun 16, 2023
CA
Last seenJun 20, 2024
CA
Inspected under 2 different carriers in 12 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
1NPBL79X6KD626049
Make
Peterbilt
Model
579
Model year
2019
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 7, 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 · Jun 16, 2023 – Jun 20, 2024

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 20, 2024CAII · Walk-around1—4AM EXPRESS INC 3838569XP46363/CA
Mar 22, 2024CAI · Full5—WILLIAMS TANK LINES LLC 229047XP46363/CA
Nov 4, 2023CAI · Full2—WILLIAMS TANK LINES LLC 229047XP46363/CA
Jun 16, 2023CAI · Full2—WILLIAMS TANK LINES LLC 229047XP46363/CA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
4AM EXPRESS INC3838569Jun 20, 2024Jun 20, 20241CA
WILLIAMS TANK LINES LLC229047Jun 16, 2023Mar 22, 20243CA
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.
XP46363CA—4AM EXPRESS INCJun 20, 2024 → Jun 20, 20241
XP46363CA—WILLIAMS TANK LINES LLCJun 16, 2023 → Mar 22, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 7, 2026