Equipment unit · VIN-decoded · NHTSA vPIC

2025 Peterbilt 579

1XPBD49X1SD744656 · Truck-Tractor · TRUCK
Carriers run under3
22 mo
Inspections6
all-time
OOS inspections2
of 6
First seenJun 13, 2024
CA
Last seenApr 29, 2026
CA
Inspected under 3 different carriers in 22 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
1XPBD49X1SD744656
Make
Peterbilt
Model
579
Model year
2025
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 13, 2024 – Apr 29, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 29, 2026CAII · Walk-around0—THE CYLINDER MAINTENANCE COMPANY INC 4281831YP54285/CA
Sep 16, 2025CAV · Vehicle-only2OOSTHE CYLINDER MAINTENANCE COMPANY INC 4281831YP54285/CA
Aug 27, 2025CAII · Walk-around1—THE CYLINDER MAINTENANCE COMPANY INC 4281831YP54285/CA
May 29, 2025CAV · Vehicle-only1—THE CYLINDER MAINTENANCE COMPANY INC 4281831YP54285/CA
Feb 18, 2025CAI · Full0—CODYSALES INC 30484329H13113/CA
Jun 13, 2024CAII · Walk-around1OOSCOLDIRON SPECIALIZED DRIVEAWAY INC 603605XPK041/AZ
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
THE CYLINDER MAINTENANCE COMPANY INC4281831May 29, 2025Apr 29, 20264CA
CODYSALES INC3048432Feb 18, 2025Feb 18, 20251CA
COLDIRON SPECIALIZED DRIVEAWAY INC603605Jun 13, 2024Jun 13, 20241OK
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.
YP54285CA—THE CYLINDER MAINTENANCE COMPANY INCMay 29, 2025 → Apr 29, 20264
9H13113CA—CODYSALES INCFeb 18, 2025 → Feb 18, 20251
XPK041AZ—COLDIRON SPECIALIZED DRIVEAWAY INCJun 13, 2024 → Jun 13, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 24, 2026