Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X8MD759867 · Truck-Tractor · TRUCK
Carriers run under2
20 mo
Inspections8
all-time
OOS inspections1
of 8
First seenOct 9, 2024
TN
Last seenJun 3, 2026
OK
Inspected under 2 different carriers in 20 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
1XPBD49X8MD759867
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 21, 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 · Oct 9, 2024 – Jun 3, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 3, 2026OKI · Full1—SAM LOGISTICS LLC 3604872CDWG09/CO
Dec 9, 2025KSII · Walk-around1—SAM LOGISTICS LLC 3604872CDWG09/CO
Jul 27, 2025ARIII · Driver-only1—WESTERN FLYER EXPRESS LLC 6589093KF553/OK
Apr 15, 2025TNIII · Driver-only0—WESTERN FLYER EXPRESS LLC 6589093KF553/OK
Mar 26, 2025UTI · Full0—WESTERN FLYER EXPRESS LLC 6589093KF553/OK
Feb 19, 2025CAI · Full3—WESTERN FLYER EXPRESS LLC 6589093KF553/OK
Dec 5, 2024NMIII · Driver-only0—WESTERN FLYER EXPRESS LLC 6589093KF553/OK
Oct 9, 2024TNII · Walk-around1OOSWESTERN FLYER EXPRESS LLC 6589093FJ627/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
SAM LOGISTICS LLC3604872Dec 9, 2025Jun 3, 20262CO
WESTERN FLYER EXPRESS LLC658909Oct 9, 2024Jul 27, 20256OK
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.
CDWG09CO—SAM LOGISTICS LLCDec 9, 2025 → Jun 3, 20262
3KF553OK—WESTERN FLYER EXPRESS LLCDec 5, 2024 → Jul 27, 20255
3FJ627OK—WESTERN FLYER EXPRESS LLCOct 9, 2024 → Oct 9, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 21, 2026