Equipment unit · VIN-decoded · NHTSA vPIC

1999 Peterbilt 378

1XPFD99X4XD498465 · Truck-Tractor · TRUCK
Carriers run under2
10 mo
Inspections4
all-time
OOS inspections2
of 4
First seenMay 22, 2025
OK
Last seenMar 25, 2026
OK
Inspected under 2 different carriers in 10 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
1XPFD99X4XD498465
Make
Peterbilt
Model
378
Model year
1999
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 · May 22, 2025 – Mar 25, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Mar 25, 2026OKIII · Driver-only1—TY GUINN 318728398473V/OK
Jun 27, 2025OKII · Walk-around3—GUINN TRUCKING LLC 435422398473V/OK
Jun 17, 2025OKII · Walk-around6OOSGUINN TRUCKING LLC 435422398473V/OK
May 22, 2025OKII · Walk-around3OOSGUINN TRUCKING LLC 435422398473V/OK
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
TY GUINN3187283Mar 25, 2026Mar 25, 20261OK
GUINN TRUCKING LLC4354223May 22, 2025Jun 27, 20253OK
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.
98473VOK—TY GUINNMar 25, 2026 → Mar 25, 20261
98473VOK—GUINN TRUCKING LLCMay 22, 2025 → Jun 27, 20253
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026