Equipment unit · VIN-decoded · NHTSA vPIC

2020 Peterbilt 579

1XPBDP9X4LD663377 · Truck-Tractor · TRUCK
Carriers run under2
12 mo
Inspections6
all-time
OOS inspections1
of 6
First seen06/25/2025
CA
Last seen06/30/2026
WI
Inspected under 2 different carriers in 12 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
1XPBDP9X4LD663377
Make
Peterbilt
Model
579
Model year
2020
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
06/29/2026
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 · 06/25/2025 – 06/30/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
06/30/2026WII · Full4OOSBIPOLARBEAR ENTERPRISES LLC 3650011A561560/MS
03/31/2026GAIII · Driver-only1—BIPOLARBEAR ENTERPRISES LLC 3650011TEMPORARY/MS
03/31/2026GAIII · Driver-only1—BIPOLARBEAR ENTERPRISES LLC 3650011TEMPORARY/MS
09/29/2025KSIII · Driver-only0—SSL TRUCKING INC 3927167PXD0183/OH
09/04/2025UTIII · Driver-only1—SSL TRUCKING INC 3927167PXD0183/OH
06/25/2025CAII · Walk-around0—SSL TRUCKING INC 3927167PXD0183/OH
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BIPOLARBEAR ENTERPRISES LLC365001103/31/202606/30/20263MS
SSL TRUCKING INC392716706/25/202509/29/20253OH
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.
A561560MS1BIPOLARBEAR ENTERPRISES LLC06/30/2026 → 06/30/20261
TEMPORARYMS1BIPOLARBEAR ENTERPRISES LLC03/31/2026 → 03/31/20262
PXD0183OH—SSL TRUCKING INC06/25/2025 → 09/29/20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/29/2026