Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 579

1XPBDP9X9LD724688 · Truck-Tractor · TRUCK
Carriers run under4
25 mo
Inspections6
all-time
OOS inspections1
of 6
First seen10/25/2023
UT
Last seen11/10/2025
TX
Inspected under 4 different carriers in 25 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
1XPBDP9X9LD724688
Make
Peterbilt
Model
579
Model year
2020
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
06/25/2026
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 · 10/25/2023 – 11/10/2025

DateStateLevelViol.OOSCarrier (DOT)Plate
11/10/2025TXII · Walk-around0—MCC XPRESS LLC 4106879PXA9944/OH
11/04/2025OHI · Full0—MCC XPRESS LLC 4106879PXA9944/OH
09/05/2025TNI · Full3OOSDIAMOND STAR LLC 3461054PXA9944/OH
05/31/2025TNIII · Driver-only1—DIAMOND STAR LLC 3461054PXA9944/OH
09/05/2024OHII · Walk-around0—ADAM 1 TRUCKING LLC 2375845PXA9944/OH
10/25/2023UTIII · Driver-only0—EW WYLIE LLC 82762225256P/ND
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MCC XPRESS LLC410687911/04/202511/10/20252OH
DIAMOND STAR LLC346105405/31/202509/05/20252OH
ADAM 1 TRUCKING LLC237584509/05/202409/05/20241OH
EW WYLIE LLC82762210/25/202310/25/20231ND
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.
PXA9944OH—MCC XPRESS LLC11/04/2025 → 11/10/20252
PXA9944OH—DIAMOND STAR LLC05/31/2025 → 09/05/20252
PXA9944OH—ADAM 1 TRUCKING LLC09/05/2024 → 09/05/20241
25256PND—EW WYLIE LLC10/25/2023 → 10/25/20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/25/2026