Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X5MD652372 · Truck-Tractor · TRUCK
Carriers run under2
23 mo
Inspections4
all-time
OOS inspections0
of 4
First seenFeb 25, 2024
NC
Last seenJan 9, 2026
CA
Inspected under 2 different carriers in 23 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
1XPBD49X5MD652372
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 · Feb 25, 2024 – Jan 9, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jan 9, 2026CAII · Walk-around0—TNB TRANSPORT INC 4153064ZP63716/CA
Dec 16, 2025CAI · Full5—TNB TRANSPORT INC 4153064SAE861/OK
Jun 28, 2024AZIII · Driver-only0—D & M CARRIERS LLC 9633003EJ683/OK
Feb 25, 2024NCII · Walk-around0—D & M CARRIERS LLC 9633003EJ683/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TNB TRANSPORT INC4153064Dec 16, 2025Jan 9, 20262CA
D & M CARRIERS LLC963300Feb 25, 2024Jun 28, 20242OK
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.
ZP63716CA—TNB TRANSPORT INCJan 9, 2026 → Jan 9, 20261
SAE861OK—TNB TRANSPORT INCDec 16, 2025 → Dec 16, 20251
3EJ683OK1D & M CARRIERS LLCFeb 25, 2024 → Jun 28, 20242
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026