Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49XXMD749325 · Truck-Tractor · TRUCK
Carriers run under2
34 mo
Inspections11
all-time
OOS inspections3
of 11
First seenSep 5, 2023
KS
Last seenJul 29, 2026
TX
Inspected under 2 different carriers in 34 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
1XPBD49XXMD749325
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 18, 2026
vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.
View sourced platform decode
02

Inspection history

Every roadside inspection of this VIN, newest first · Sep 5, 2023 – Jul 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 29, 2026TXII · Walk-around1OOSIRON KING CARRIERS LLC 45422401P19689/TX
Apr 22, 2026TXI · Full6OOSIRON KING CARRIERS LLC 45422401N98521/TX
Apr 15, 2026USII · Walk-around1—IRON KING CARRIERS LLC 45422401N98521/TX
Sep 28, 2025OKII · Walk-around0—RICHERS TRUCKING INC 274505DB3646/IA
Jul 15, 2025IAIII · Driver-only1—RICHERS TRUCKING INC 274505DB3646/IA
Jan 1, 2025TXII · Walk-around0—RICHERS TRUCKING INC 274505DB3646/IA
Nov 19, 2024WIIII · Driver-only1—RICHERS TRUCKING INC 274505DB3646/IA
Oct 29, 2024IAIII · Driver-only1—RICHERS TRUCKING INC 274505DB3646/IA
Mar 4, 2024MOII · Walk-around1OOSRICHERS TRUCKING INC 274505DB3646/IA
Dec 19, 2023KYIII · Driver-only0—RICHERS TRUCKING INC 274505DB3646/IA
Sep 5, 2023KSII · Walk-around0—RICHERS TRUCKING INC 274505DB3646/IA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
IRON KING CARRIERS LLC4542240Apr 15, 2026Jul 29, 20263TX
RICHERS TRUCKING INC274505Sep 5, 2023Sep 28, 20258IA
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.
1P19689TX1IRON KING CARRIERS LLCJul 29, 2026 → Jul 29, 20261
1N98521TX—IRON KING CARRIERS LLCApr 15, 2026 → Apr 22, 20262
DB3646IA—RICHERS TRUCKING INCSep 5, 2023 → Sep 28, 20258
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 18, 2026