Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X8MD756211 · Truck-Tractor · TRUCK
Carriers run under3
27 mo
Inspections7
all-time
OOS inspections2
of 7
First seenApr 19, 2024
NM
Last seenJul 23, 2026
AZ
Inspected under 3 different carriers in 27 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
1XPBD49X8MD756211
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 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 · Apr 19, 2024 – Jul 23, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 23, 2026AZII · Walk-around1—TRANSPORT TRUST INC 4342465M526AA/NJ
Nov 26, 2025LAIII · Driver-only4OOSSTAR TRUCKING US LLC 3162376AH02240/PA
Oct 22, 2025TNI · Full10OOSTRANSPORT TRUST INC 4342465AH02240/PA
Aug 11, 2025TXII · Walk-around4—TRANSPORT TRUST INC 4342465AH02240/PA
Oct 16, 2024COIII · Driver-only2—FIRSTFLEET INC 3138913037207/IN
Jun 17, 2024NMI · Full0—FIRSTFLEET INC 3138913037207/IN
Apr 19, 2024NMIII · Driver-only0—FIRSTFLEET INC 3138913037207/IN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRANSPORT TRUST INC4342465Aug 11, 2025Jul 23, 20263PA
STAR TRUCKING US LLC3162376Nov 26, 2025Nov 26, 20251PA
FIRSTFLEET INC313891Apr 19, 2024Oct 16, 20243TN
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.
M526AANJ1TRANSPORT TRUST INCJul 23, 2026 → Jul 23, 20261
AH02240PA—STAR TRUCKING US LLCNov 26, 2025 → Nov 26, 20251
AH02240PA—TRANSPORT TRUST INCAug 11, 2025 → Oct 22, 20252
3037207IN—FIRSTFLEET INCApr 19, 2024 → Oct 16, 20243
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026
2021 Peterbilt 579 — VIN 1XPBD49X8MD756211