Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9XXMD742733 · Truck-Tractor · TRUCK
Carriers run under2
19 mo
Inspections6
all-time
OOS inspections0
of 6
First seen05/27/2024
GA
Last seen12/09/2025
MO
Inspected under 2 different carriers in 19 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
1XPBDP9XXMD742733
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
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 · 05/27/2024 – 12/09/2025

DateStateLevelViol.OOSCarrier (DOT)Plate
12/09/2025MOII · Walk-around3—MERIX EXPEDITED SERVICES LLC 241207389KT5X/MO
12/04/2025OKIII · Driver-only0—MERIX EXPEDITED SERVICES LLC 241207389KT5X/MO
08/21/2025INIII · Driver-only1—MERIX EXPEDITED SERVICES LLC 2412073TEMP/MO
08/07/2025MOIII · Driver-only1—MERIX EXPEDITED SERVICES LLC 2412073XXXX/MO
10/25/2024TNI · Full0—PAM TRANSPORT INC 1797523050860/UK
05/27/2024GAIII · Driver-only1—PAM TRANSPORT INC 1797523050860/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
MERIX EXPEDITED SERVICES LLC241207308/07/202512/09/20254MO
PAM TRANSPORT INC17975205/27/202410/25/20242AR
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.
89KT5XMO—MERIX EXPEDITED SERVICES LLC12/04/2025 → 12/09/20252
TEMPMO—MERIX EXPEDITED SERVICES LLC08/21/2025 → 08/21/20251
XXXXMO—MERIX EXPEDITED SERVICES LLC08/07/2025 → 08/07/20251
3050860UK—PAM TRANSPORT INC10/25/2024 → 10/25/20241
3050860IN—PAM TRANSPORT INC05/27/2024 → 05/27/20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/25/2026