Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49XXMD759840 · Truck-Tractor · TRUCK
Carriers run under2
28 mo
Inspections6
all-time
OOS inspections3
of 6
First seenJul 18, 2023
CO
Last seenNov 25, 2025
TN
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
1XPBD49XXMD759840
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 · Jul 18, 2023 – Nov 25, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 25, 2025TNIII · Driver-only0—RBS CARRIERS INC 3372533R712972/TX
Apr 1, 2025ARIII · Driver-only0—RBS CARRIERS INC 3372533R712972/TX
Nov 8, 2024TNI · Full1OOSRBS CARRIERS INC 3372533R712972/UK
Feb 14, 2024TXI · Full4OOSRBS CARRIERS INC 3372533R712972/TX
Sep 4, 2023WAII · Walk-around0—WESTERN FLYER EXPRESS LLC 6589093FE353/OK
Jul 18, 2023COII · Walk-around1OOSWESTERN FLYER EXPRESS LLC 6589093FE353/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
RBS CARRIERS INC3372533Feb 14, 2024Nov 25, 20254TX
WESTERN FLYER EXPRESS LLC658909Jul 18, 2023Sep 4, 20232OK
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.
R712972TX—RBS CARRIERS INCFeb 14, 2024 → Nov 25, 20253
R712972UK—RBS CARRIERS INCNov 8, 2024 → Nov 8, 20241
3FE353OK—WESTERN FLYER EXPRESS LLCJul 18, 2023 → Sep 4, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026