Equipment unit · VIN-decoded · NHTSA vPIC

1999 Peterbilt 379

1NP5D69X1XN481900 · Truck-Tractor · INCOMPLETE VEHICLE
Carriers run under1
13 mo
Inspections3
all-time
OOS inspections1
of 3
First seenSep 11, 2024
IL
Last seenOct 21, 2025
NY
01

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN
1NP5D69X1XN481900
Make
Peterbilt
Model
379
Model year
1999
Body class
Truck-Tractor
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 26, 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 11, 2024 – Oct 21, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Oct 21, 2025NYII · Walk-around3OOSROBERT S WILLIAMS 956983AE73646/PA
Jun 13, 2025MNIII · Driver-only1—ROBERT S WILLIAMS 956983AE73646/PA
Sep 11, 2024ILII · Walk-around0—ROBERT S WILLIAMS 956983AE73646/PA
03

Carriers this unit has run under

1 distinct carrier · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
ROBERT S WILLIAMS956983Sep 11, 2024Oct 21, 20253PA
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.
AE73646PA—ROBERT S WILLIAMSSep 11, 2024 → Oct 21, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 26, 2026