Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X4MD735632 · Truck-Tractor · TRUCK
Carriers run under2
26 mo
Inspections6
all-time
OOS inspections0
of 6
First seenFeb 16, 2024
NM
Last seenApr 9, 2026
TX
Inspected under 2 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
1XPBD49X4MD735632
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 25, 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 · Feb 16, 2024 – Apr 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 9, 2026TXII · Walk-around0—TCBL LLC 1334511R745415/TX
Jan 15, 2026TXII · Walk-around0—TCBL LLC 1334511R745415/TX
Dec 11, 2025TXII · Walk-around5—TCBL LLC 1334511R745415/TX
Aug 8, 2025TXII · Walk-around3—TCBL LLC 1334511R745415/TX
May 15, 2025TXI · Full0—TCBL LLC 1334511R745415/TX
Feb 16, 2024NMII · Walk-around1—D & M CARRIERS LLC 9633003EP834/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TCBL LLC1334511May 15, 2025Apr 9, 20265TX
D & M CARRIERS LLC963300Feb 16, 2024Feb 16, 20241OK
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.
R745415TX—TCBL LLCMay 15, 2025 → Apr 9, 20265
3EP834OK1D & M CARRIERS LLCFeb 16, 2024 → Feb 16, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026