Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X7MD735480 · Truck-Tractor · TRUCK
Carriers run under2
31 mo
Inspections3
all-time
OOS inspections1
of 3
First seenOct 24, 2023
CO
Last seenMay 17, 2026
MS
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
1XPBD49X7MD735480
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 30, 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 · Oct 24, 2023 – May 17, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 17, 2026MSIII · Driver-only0—AJ & A LLC 3967400R744839/TX
Nov 21, 2023ARII · Walk-around2OOSMARTEN TRANSPORT LTD 744322913002/IN
Oct 24, 2023COII · Walk-around0—MARTEN TRANSPORT LTD 744322913002/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
AJ & A LLC3967400May 17, 2026May 17, 20261TX
MARTEN TRANSPORT LTD74432Oct 24, 2023Nov 21, 20232WI
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.
R744839TX—AJ & A LLCMay 17, 2026 → May 17, 20261
2913002IN—MARTEN TRANSPORT LTDOct 24, 2023 → Nov 21, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 30, 2026