Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X3MD751711 · Truck-Tractor · TRUCK
Carriers run under3
26 mo
Inspections3
all-time
OOS inspections1
of 3
First seenApr 18, 2024
TX
Last seenJun 4, 2026
OK
Inspected under 3 different carriers in 26 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
1XPBD49X3MD751711
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 · Apr 18, 2024 – Jun 4, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 4, 2026OKI · Full10OOSTEX TRAIL TRANSPORT LLC 4141365R852011/TX
Feb 4, 2026COII · Walk-around3—UNITED PETROLEUM TRANSPORTS INC 1850403NG628/OK
Apr 18, 2024TXII · Walk-around0—HENIFF TRANSPORTATION SYSTEMS LLC 7594933422733/IN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TEX TRAIL TRANSPORT LLC4141365Jun 4, 2026Jun 4, 20261TX
UNITED PETROLEUM TRANSPORTS INC185040Feb 4, 2026Feb 4, 20261OK
HENIFF TRANSPORTATION SYSTEMS LLC759493Apr 18, 2024Apr 18, 20241IL
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.
R852011TX—TEX TRAIL TRANSPORT LLCJun 4, 2026 → Jun 4, 20261
3NG628OK—UNITED PETROLEUM TRANSPORTS INCFeb 4, 2026 → Feb 4, 20261
3422733IN1HENIFF TRANSPORTATION SYSTEMS LLCApr 18, 2024 → Apr 18, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 30, 2026