Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X8MD743444 · Truck-Tractor · TRUCK
Carriers run under4
33 mo
Inspections6
all-time
OOS inspections2
of 6
First seenSep 26, 2023
IL
Last seenJun 22, 2026
WV
Inspected under 4 different carriers in 33 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
1XPBDP9X8MD743444
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
Jun 27, 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 · Sep 26, 2023 – Jun 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 22, 2026WVIII · Driver-only1—SAINTUS TRANSPORT LLC 3565823DF18MT/FL
Jul 21, 2025INIII · Driver-only1—JX ENTERPRISES INC 135831704M18/IN
Jul 31, 2024MSI · Full4OOSNEW LINE CARRIERS INC 296546714988Z/WI
Jul 14, 2024OHII · Walk-around1OOSNEW LINE CARRIERS INC 296546714988Z/WI
Apr 12, 2024TNI · Full0—NEW LINE CARRIERS INC 296546714988Z/WI
Sep 26, 2023ILII · Walk-around1—BEST NATIONAL INDUSTRIES INCORPORATED 292724414988Z/WI
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SAINTUS TRANSPORT LLC3565823Jun 22, 2026Jun 22, 20261FL
JX ENTERPRISES INC135831Jul 21, 2025Jul 21, 20251WI
NEW LINE CARRIERS INC2965467Apr 12, 2024Jul 31, 20243IL
BEST NATIONAL INDUSTRIES INCORPORATED2927244Sep 26, 2023Sep 26, 20231IL
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.
DF18MTFL1SAINTUS TRANSPORT LLCJun 22, 2026 → Jun 22, 20261
704M18IN—JX ENTERPRISES INCJul 21, 2025 → Jul 21, 20251
14988ZWI—NEW LINE CARRIERS INCApr 12, 2024 → Jul 31, 20243
14988ZWI—BEST NATIONAL INDUSTRIES INCORPORATEDSep 26, 2023 → Sep 26, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 27, 2026