Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X6MD741349 · Truck-Tractor · TRUCK

Carriers run under2

22 mo

Inspections3

all-time

OOS inspections1

of 3

First seenMar 20, 2024

Last seenJan 14, 2026

Inspected under 2 different carriers in 22 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.

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN: 1XPBD49X6MD741349
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.

Inspection history

Every roadside inspection of this VIN, newest first · Mar 20, 2024 – Jan 14, 2026

Date	State	Level	Viol.	OOS	Carrier (DOT)	Plate
Jan 14, 2026	WA	II · Walk-around	7	OOS	NUEVO LEON TRUCKING LLC 2451779	D43252D/WA
Jul 24, 2025	WA	III · Driver-only	0	—	NUEVO LEON TRUCKING LLC 2451779	D43252D/WA
Mar 20, 2024	WA	III · Driver-only	0	—	RAM TRANSPORT LLC 3473332	D43252D/WA

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

Carrier	DOT	First seen	Last seen	Insp.	State
NUEVO LEON TRUCKING LLC	2451779	Jul 24, 2025	Jan 14, 2026	2	WA
RAM TRANSPORT LLC	3473332	Mar 20, 2024	Mar 20, 2024	1	WA

Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.

Plate & unit-number history

The same truck under different plate registrations across carriers

Plate	State / prov.	Unit no.	Carrier	Date range	Insp.
D43252D	WA	—	NUEVO LEON TRUCKING LLC	Jul 24, 2025 → Jan 14, 2026	2
D43252D	WA	—	RAM TRANSPORT LLC	Mar 20, 2024 → Mar 20, 2024	1

Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 30, 2026