Equipment unit · VIN-decoded · NHTSA vPIC

2017 Peterbilt 579

1XPBD49X4HD392813 · Truck-Tractor · TRUCK
Carriers run under2
31 mo
Inspections5
all-time
OOS inspections1
of 5
First seenSep 20, 2023
TN
Last seenApr 27, 2026
AL
Inspected under 2 different carriers in 31 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
1XPBD49X4HD392813
Make
Peterbilt
Model
579
Model year
2017
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 28, 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 · Sep 20, 2023 – Apr 27, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Apr 27, 2026ALII · Walk-around4—D4 TRUCKING LLC 20826671208159/AL
Jul 24, 2024ALIII · Driver-only0—JAMES R SMITH TRUCKING CO INC 1549131200741/AL
Dec 12, 2023GAIII · Driver-only0—JAMES R SMITH TRUCKING CO INC 1549131200741/AL
Oct 13, 2023TNI · Full1OOSJAMES R SMITH TRUCKING CO INC 1549131200741/AL
Sep 20, 2023TNI · Full0—JAMES R SMITH TRUCKING CO INC 1549131200741/AL
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
D4 TRUCKING LLC2082667Apr 27, 2026Apr 27, 20261AL
JAMES R SMITH TRUCKING CO INC154913Sep 20, 2023Jul 24, 20244AL
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.
1208159AL—D4 TRUCKING LLCApr 27, 2026 → Apr 27, 20261
1200741AL—JAMES R SMITH TRUCKING CO INCSep 20, 2023 → Jul 24, 20244
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 28, 2026