Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X0MD720223 · Truck-Tractor · TRUCK
Carriers run under1
35 mo
Inspections5
all-time
OOS inspections0
of 5
First seenJun 12, 2023
IN
Last seenMay 6, 2026
MO
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPBD49X0MD720223
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 28, 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 · Jun 12, 2023 – May 6, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
May 6, 2026MOIII · Driver-only1—EARL L BONSACK INC 4631059601Z/WI
Oct 19, 2025ILIII · Driver-only1—EARL L BONSACK INC 46310811671/WI
Jul 30, 2025WII · Full0—EARL L BONSACK INC 4631059601Z/WI
Jan 14, 2025WIII · Walk-around0—EARL L BONSACK INC 4631059601Z/WI
Jun 12, 2023INII · Walk-around0—EARL L BONSACK INC 4631059601Z/WI
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
EARL L BONSACK INC46310Jun 12, 2023May 6, 20265WI
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.
59601ZWI—EARL L BONSACK INCJun 12, 2023 → May 6, 20264
811671WI—EARL L BONSACK INCOct 19, 2025 → Oct 19, 20251
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026