Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X4MD761276 · Truck-Tractor · TRUCK
Carriers run under3
29 mo
Inspections7
all-time
OOS inspections1
of 7
First seen08/15/2023
TN
Last seen01/20/2026
AR
Inspected under 3 different carriers in 29 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
1XPBDP9X4MD761276
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
06/21/2026
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 · 08/15/2023 – 01/20/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
01/20/2026ARIII · Driver-only1—SOUTHERN AG CARRIER'S INC 450770K827764/AR
09/24/2025ARIII · Driver-only1—SOUTHERN AG CARRIER'S INC 450770K827764/AR
09/01/2025ARI · Full3OOSSTEVE POWERS 512022K827764/AR
06/20/2025ARII · Walk-around0—SOUTHERN AG CARRIER'S INC 450770K827764/AR
12/20/2024MOIII · Driver-only0—SOUTHERN AG CARRIER'S INC 450770K827764/AR
10/19/2023MOII · Walk-around6—CONWAY COURIER SERVICE INC 906238K816233/AR
08/15/2023TNI · Full0—CONWAY COURIER SERVICE INC 906238K816233/AR
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SOUTHERN AG CARRIER'S INC45077012/20/202401/20/20264GA
STEVE POWERS51202209/01/202509/01/20251AR
CONWAY COURIER SERVICE INC90623808/15/202310/19/20232AR
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.
K827764AR—SOUTHERN AG CARRIER'S INC12/20/2024 → 01/20/20264
K827764AR—STEVE POWERS09/01/2025 → 09/01/20251
K816233AR—CONWAY COURIER SERVICE INC08/15/2023 → 10/19/20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/21/2026