Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X6MD748223 · Truck-Tractor · TRUCK
Carriers run under2
31 mo
Inspections3
all-time
OOS inspections0
of 3
First seen10/13/2023
MS
Last seen05/13/2026
PA
Inspected under 2 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
1XPBDP9X6MD748223
Make
Peterbilt
Model
579
Model year
2021
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
07/31/2026
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 · 10/13/2023 – 05/13/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
05/13/2026PAIII · Driver-only8—MEB EXPRESS INC 3101120XD003Y/FL
04/18/2024TNIII · Driver-only0—WEL COMPANIES INC 166046186907/UK
10/13/2023MSI · Full0—WEL COMPANIES INC 16604618690Z/WI
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MEB EXPRESS INC310112005/13/202605/13/20261FL
WEL COMPANIES INC16604610/13/202304/18/20242WI
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.
XD003YFL—MEB EXPRESS INC05/13/2026 → 05/13/20261
186907UK—WEL COMPANIES INC04/18/2024 → 04/18/20241
18690ZWI—WEL COMPANIES INC10/13/2023 → 10/13/20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 07/31/2026
2021 Peterbilt 579 — VIN 1XPBDP9X6MD748223