Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X4MD742761 · Truck-Tractor · TRUCK
Carriers run under2
32 mo
Inspections3
all-time
OOS inspections1
of 3
First seenJun 21, 2023
SC
Last seenFeb 22, 2026
TN
Inspected under 2 different carriers in 32 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
1XPBDP9X4MD742761
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
Jul 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 · Jun 21, 2023 – Feb 22, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Feb 22, 2026TNIII · Driver-only2OOSXRP CARRIERS LLC 4418499Q3K7XLY/TN
Jan 14, 2026KSII · Walk-around5—XRP CARRIERS LLC 4418499Q3K7XLY/TN
Jun 21, 2023SCIII · Driver-only0—PAM TRANSPORT INC 1797523050992/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
XRP CARRIERS LLC4418499Jan 14, 2026Feb 22, 20262GA
PAM TRANSPORT INC179752Jun 21, 2023Jun 21, 20231AR
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.
Q3K7XLYTN—XRP CARRIERS LLCJan 14, 2026 → Feb 22, 20262
3050992IN—PAM TRANSPORT INCJun 21, 2023 → Jun 21, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 31, 2026