Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X9MD755442 · Truck-Tractor · TRUCK
Carriers run under1
26 mo
Inspections6
all-time
OOS inspections0
of 6
First seenApr 7, 2024
MT
Last seenJun 2, 2026
WA
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1XPBDP9X9MD755442
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 · Apr 7, 2024 – Jun 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 2, 2026WAIII · Driver-only1—CLYDE JOHN CALKINS 314238PA30044/MT
Nov 16, 2025MTIII · Driver-only0—CLYDE JOHN CALKINS 314238PA30044/MT
Oct 17, 2025MTII · Walk-around0—CLYDE JOHN CALKINS 314238PA30044/MT
May 1, 2025WAIII · Driver-only0—CLYDE JOHN CALKINS 314238PA30044/MT
Jun 30, 2024WAII · Walk-around0—CLYDE JOHN CALKINS 314238PA30044/MT
Apr 7, 2024MTIII · Driver-only0—CLYDE JOHN CALKINS 314238PA30044/MT
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
CLYDE JOHN CALKINS314238Apr 7, 2024Jun 2, 20266MT
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.
PA30044MT—CLYDE JOHN CALKINSApr 7, 2024 → Jun 2, 20266
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026