Equipment unit · VIN-decoded · NHTSA vPIC

1999 Peterbilt 378

1XPFDR9X7XD474953 · Truck-Tractor · TRUCK
Carriers run under2
35 mo
Inspections4
all-time
OOS inspections0
of 4
First seenAug 10, 2023
TX
Last seenJul 2, 2026
TX
Inspected under 2 different carriers in 35 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
1XPFDR9X7XD474953
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 · Aug 10, 2023 – Jul 2, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 2, 2026TXII · Walk-around0—BIG BRAZOS TRANSPORT LLC 29312011N86617/TX
Mar 19, 2026TXII · Walk-around0—BIG BRAZOS TRANSPORT LLC 29312011N86617/TX
Feb 24, 2026TXII · Walk-around2—BIG BRAZOS TRANSPORT LLC 29312011N86617/TX
Aug 10, 2023TXII · Walk-around3—50 50 CARRIERS LLC 39723971M61042/TX
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
BIG BRAZOS TRANSPORT LLC2931201Feb 24, 2026Jul 2, 20263TX
50 50 CARRIERS LLC3972397Aug 10, 2023Aug 10, 20231TX
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.
1N86617TX1BIG BRAZOS TRANSPORT LLCFeb 24, 2026 → Jul 2, 20263
1M61042TX—50 50 CARRIERS LLCAug 10, 2023 → Aug 10, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 12, 2026