Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X8MD735831 · Truck-Tractor · TRUCK
Carriers run under3
24 mo
Inspections4
all-time
OOS inspections0
of 4
First seenSep 12, 2023
NM
Last seenSep 25, 2025
NE
Inspected under 3 different carriers in 24 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
1XPBDP9X8MD735831
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 12, 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 12, 2023 – Sep 25, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Sep 25, 2025NEIII · Driver-only0—VIS INC 3842928XE966D/FL
May 12, 2025INIII · Driver-only1—SSL TRUCKING INC 3927167XE966D/FL
Oct 12, 2023SCIII · Driver-only1—EW WYLIE LLC 82762212905P/ND
Sep 12, 2023NMIII · Driver-only0—EW WYLIE LLC 82762212905P/ND
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
VIS INC3842928Sep 25, 2025Sep 25, 20251IL
SSL TRUCKING INC3927167May 12, 2025May 12, 20251OH
EW WYLIE LLC827622Sep 12, 2023Oct 12, 20232ND
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.
XE966DFL—VIS INCSep 25, 2025 → Sep 25, 20251
XE966DFL—SSL TRUCKING INCMay 12, 2025 → May 12, 20251
12905PND—EW WYLIE LLCSep 12, 2023 → Oct 12, 20232
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026