Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBD49X6MD756160 · Truck-Tractor · TRUCK
Carriers run under2
14 mo
Inspections3
all-time
OOS inspections0
of 3
First seenApr 29, 2024
TN
Last seenJun 5, 2025
NJ
Inspected under 2 different carriers in 14 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
1XPBD49X6MD756160
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
Jul 30, 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 29, 2024 – Jun 5, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 5, 2025NJII · Walk-around1—TRANSPORT TRUST INC 4342465AH43474/PA
Apr 2, 2025AZIII · Driver-only0—TRANSPORT TRUST INC 4342465TEMP/PA
Apr 29, 2024TNIII · Driver-only0—FIRSTFLEET INC 3138913035635/IN
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TRANSPORT TRUST INC4342465Apr 2, 2025Jun 5, 20252PA
FIRSTFLEET INC313891Apr 29, 2024Apr 29, 20241TN
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.
AH43474PA—TRANSPORT TRUST INCJun 5, 2025 → Jun 5, 20251
TEMPPA—TRANSPORT TRUST INCApr 2, 2025 → Apr 2, 20251
3035635IN—FIRSTFLEET INCApr 29, 2024 → Apr 29, 20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 30, 2026