Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X9MD746062 · Truck-Tractor · TRUCK
Carriers run under3
33 mo
Inspections5
all-time
OOS inspections0
of 5
First seenSep 11, 2023
OH
Last seenJun 11, 2026
MI
Inspected under 3 different carriers in 33 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
1XPBDP9X9MD746062
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 29, 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 · Sep 11, 2023 – Jun 11, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 11, 2026MIII · Walk-around1—STANDISH MILLING COMPANY INC 114607RC57875/MI
Mar 5, 2026INIII · Driver-only0—STANDISH MILLING COMPANY INC 114607RC57875/MI
Jan 15, 2026WIIII · Driver-only0—STANDISH MILLING COMPANY INC 114607RC57875/MI
Mar 20, 2024COIII · Driver-only1—TANTARA TRANSPORTATION INC 587180RC34255/MI
Sep 11, 2023OHIII · Driver-only1—MERCER TRANSPORTATION COMPANY INC 1547123455445/IN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
STANDISH MILLING COMPANY INC114607Jan 15, 2026Jun 11, 20263MI
TANTARA TRANSPORTATION INC587180Mar 20, 2024Mar 20, 20241MI
MERCER TRANSPORTATION COMPANY INC154712Sep 11, 2023Sep 11, 20231KY
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.
RC57875MI—STANDISH MILLING COMPANY INCJan 15, 2026 → Jun 11, 20263
RC34255MI—TANTARA TRANSPORTATION INCMar 20, 2024 → Mar 20, 20241
3455445IN—MERCER TRANSPORTATION COMPANY INCSep 11, 2023 → Sep 11, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 29, 2026