Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X2MD755847 · Truck-Tractor · TRUCK
Carriers run under2
21 mo
Inspections4
all-time
OOS inspections0
of 4
First seen09/12/2024
SC
Last seen06/03/2026
NY
Inspected under 2 different carriers in 21 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
1XPBDP9X2MD755847
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
07/12/2026
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 · 09/12/2024 – 06/03/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
06/03/2026NYIII · Driver-only0—PONY EXPRESS LTD 2953311PB40562/ON
06/18/2025NYII · Walk-around0—KJS TRANSPORT INC 1299445PA36149/ON
04/30/2025INIII · Driver-only1—KJS TRANSPORT INC 1299445PA36149/ON
09/12/2024SCII · Walk-around0—KJS TRANSPORT INC 1299445PA36149/ON
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
PONY EXPRESS LTD295331106/03/202606/03/20261ON
KJS TRANSPORT INC129944509/12/202406/18/20253ON
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.
PB40562ON—PONY EXPRESS LTD06/03/2026 → 06/03/20261
PA36149ON—KJS TRANSPORT INC09/12/2024 → 06/18/20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 07/12/2026