Equipment unit · VIN-decoded · NHTSA vPIC

2005 Peterbilt 379

1XP5DB9X25N856835 · Truck-Tractor · TRUCK
Carriers run under3
27 mo
Inspections4
all-time
OOS inspections2
of 4
First seen12/12/2023
WI
Last seen03/10/2026
WI
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
1XP5DB9X25N856835
Make
Peterbilt
Model
379
Model year
2005
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
07/11/2026
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 · 12/12/2023 – 03/10/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
03/10/2026WIIII · Driver-only1—THOMAS WERNER NYFFENEGGER 2796384TS62322/WI
12/17/2025WIII · Walk-around8OOSTHOMAS WERNER NYFFENEGGER 2796384TS62322/WI
02/04/2025NMIII · Driver-only0—SKINNER TRANSFER CORP 7446678549Z/WI
12/12/2023WII · Full5OOSLOUISIANA-PACIFIC CORPORATION 146001S1554HY/TN
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
THOMAS WERNER NYFFENEGGER279638412/17/202503/10/20262WI
SKINNER TRANSFER CORP7446602/04/202502/04/20251WI
LOUISIANA-PACIFIC CORPORATION14600112/12/202312/12/20231TN
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.
TS62322WI—THOMAS WERNER NYFFENEGGER12/17/2025 → 03/10/20262
78549ZWI—SKINNER TRANSFER CORP02/04/2025 → 02/04/20251
S1554HYTN—LOUISIANA-PACIFIC CORPORATION12/12/2023 → 12/12/20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 07/11/2026