Equipment unit · VIN-decoded · NHTSA vPIC

2019 Peterbilt 579

1XPBDP9X4KD640955 · Truck-Tractor · TRUCK
Carriers run under3
31 mo
Inspections9
all-time
OOS inspections1
of 9
First seen11/01/2023
CA
Last seen06/02/2026
CA
Inspected under 3 different carriers in 31 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
1XPBDP9X4KD640955
Make
Peterbilt
Model
579
Model year
2019
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
06/19/2026
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 · 11/01/2023 – 06/02/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
06/02/2026CAIII · Driver-only0—RICH DOSS INC 168261ZP04876/CA
02/13/2026CAI · Full0—RICH DOSS INC 168261ZP04876/CA
01/21/2026CAII · Walk-around0—RICH DOSS INC 168261ZP04876/CA
06/12/2025CAII · Walk-around2OOSRICH DOSS INC 168261ZP04876/CA
10/15/2024CAI · Full0—RICH DOSS INC 168261ZP04876/CA
07/19/2024CAII · Walk-around0—RICH DOSS INC 168261ZP04876/CA
05/15/2024CAI · Full1—F3 SYSTEMS INC 1384069ZP04876/CA
02/22/2024NVIII · Driver-only0—F3 SYSTEMS INC 1384069ZP04876/CA
11/01/2023CAI · Full0—SLAKEY BROTHERS INC 1432599F37683/CA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RICH DOSS INC16826107/19/202406/02/20266CA
F3 SYSTEMS INC138406902/22/202405/15/20242CA
SLAKEY BROTHERS INC14325911/01/202311/01/20231CA
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.
ZP04876CA—RICH DOSS INC07/19/2024 → 06/02/20266
ZP04876CA—F3 SYSTEMS INC02/22/2024 → 05/15/20242
9F37683CA—SLAKEY BROTHERS INC11/01/2023 → 11/01/20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/19/2026