Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X2MD742417 · Truck-Tractor · TRUCK
Carriers run under3
29 mo
Inspections6
all-time
OOS inspections1
of 6
First seenJun 12, 2023
NC
Last seenNov 4, 2025
WA
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
1XPBD49X2MD742417
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 24, 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 – Nov 4, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Nov 4, 2025WAII · Walk-around3—DIAMOND GROUP LOGISTICS CO 3043555C953FD/GA
Sep 2, 2025AZIII · Driver-only0—DIAMOND GROUP LOGISTICS CO 3043555C953FD/GA
Jan 3, 2025OHII · Walk-around8OOSSHARMACK TRANSPORT INC 2485847GKW818/GA
Jul 3, 2023ARIII · Driver-only0—COOKE TRUCKING COMPANY INC 16189NL8365/NC
Jun 21, 2023CAI · Full0—COOKE TRUCKING COMPANY INC 16189NL8365/NC
Jun 12, 2023NCIII · Driver-only0—COOKE TRUCKING COMPANY INC 16189NL8365/NC
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
DIAMOND GROUP LOGISTICS CO3043555Sep 2, 2025Nov 4, 20252IL
SHARMACK TRANSPORT INC2485847Jan 3, 2025Jan 3, 20251UT
COOKE TRUCKING COMPANY INC16189Jun 12, 2023Jul 3, 20233NC
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.
C953FDGA—DIAMOND GROUP LOGISTICS COSep 2, 2025 → Nov 4, 20252
GKW818GA—SHARMACK TRANSPORT INCJan 3, 2025 → Jan 3, 20251
NL8365NC—COOKE TRUCKING COMPANY INCJun 12, 2023 → Jul 3, 20233
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026