Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X9MD735643 · Truck-Tractor · TRUCK
Carriers run under2
28 mo
Inspections4
all-time
OOS inspections1
of 4
First seenDec 5, 2023
CA
Last seenApr 2, 2026
TX
Inspected under 2 different carriers in 28 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
1XPBD49X9MD735643
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 12, 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 · Dec 5, 2023 – Apr 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 2, 2026TXI · Full1—TCBL LLC 1334511R780169/TX
Sep 25, 2025TXIII · Driver-only1—TCBL LLC 1334511R780169/TX
Jun 10, 2025TXII · Walk-around1OOSTCBL LLC 1334511R780169/TX
Dec 5, 2023CAIII · Driver-only3—D & M CARRIERS LLC 9633003ES783/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TCBL LLC1334511Jun 10, 2025Apr 2, 20263TX
D & M CARRIERS LLC963300Dec 5, 2023Dec 5, 20231OK
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.
R780169TX—TCBL LLCJun 10, 2025 → Apr 2, 20263
3ES783OK1D & M CARRIERS LLCDec 5, 2023 → Dec 5, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026