Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X1MD707661 · Truck-Tractor · TRUCK
Carriers run under3
14 mo
Inspections4
all-time
OOS inspections2
of 4
First seen12/04/2024
WY
Last seen02/23/2026
AL
Inspected under 3 different carriers in 14 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
1XPBDP9X1MD707661
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
07/12/2026
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 · 12/04/2024 – 02/23/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
02/23/2026ALIII · Driver-only1—FRITH TRANSPORT LLC 4094994AM59031/AZ
10/03/2025MOII · Walk-around3OOSKAMYON CARRIERS LLC 3197459AM59031/AZ
04/02/2025NMII · Walk-around1—LOADPRO TRUCKING LLC 2896184AM59031/AZ
12/04/2024WYI · Full2OOSLOADPRO TRUCKING LLC 2896184AM59031/AZ
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
FRITH TRANSPORT LLC409499402/23/202602/23/20261GA
KAMYON CARRIERS LLC319745910/03/202510/03/20251TX
LOADPRO TRUCKING LLC289618412/04/202404/02/20252OH
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.
AM59031AZ—FRITH TRANSPORT LLC02/23/2026 → 02/23/20261
AM59031AZ—KAMYON CARRIERS LLC10/03/2025 → 10/03/20251
AM59031AZ—LOADPRO TRUCKING LLC12/04/2024 → 04/02/20252
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 07/12/2026
2021 Peterbilt 579 — VIN 1XPBDP9X1MD707661 | Vektor