Equipment unit · VIN-decoded · NHTSA vPIC

2018 Peterbilt 579

1XPBDP9X3JD493087 · Truck-Tractor · TRUCK
Carriers run under3
14 mo
Inspections6
all-time
OOS inspections5
of 6
First seen01/29/2025
MS
Last seen03/12/2026
TX
Inspected under 3 different carriers in 14 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
1XPBDP9X3JD493087
Make
Peterbilt
Model
579
Model year
2018
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
06/25/2026
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 · 01/29/2025 – 03/12/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
03/12/2026TXI · Full9OOSWB EXPRESS LLC 4482885P274962/LA
03/03/2026TXII · Walk-around19OOSWB EXPRESS LLC 4482885P274962/LA
11/16/2025WYI · Full16OOST-JAM EXPRESS LLC 383949893087/LA
11/11/2025TXII · Walk-around8OOST-JAM EXPRESS LLC 3839498NONE/LA
09/09/2025LAII · Walk-around6OOST-JAM EXPRESS LLC 3839498VIN 3087/LA
01/29/2025MSIII · Driver-only2—SOUTHSIDE TRANSPORT SERVICE LLC 3746611NO TAG/LA
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WB EXPRESS LLC448288503/03/202603/12/20262LA
T-JAM EXPRESS LLC383949809/09/202511/16/20253LA
SOUTHSIDE TRANSPORT SERVICE LLC374661101/29/202501/29/20251LA
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.
P274962LA—WB EXPRESS LLC03/03/2026 → 03/12/20262
93087LA—T-JAM EXPRESS LLC11/16/2025 → 11/16/20251
NONELA—T-JAM EXPRESS LLC11/11/2025 → 11/11/20251
VIN 3087LA—T-JAM EXPRESS LLC09/09/2025 → 09/09/20251
NO TAGLA—SOUTHSIDE TRANSPORT SERVICE LLC01/29/2025 → 01/29/20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/25/2026