Equipment unit · VIN-decoded · NHTSA vPIC

2017 Peterbilt 579

1XPBDP9X1HD410413 · Truck-Tractor · TRUCK
Carriers run under3
36 mo
Inspections6
all-time
OOS inspections2
of 6
First seenJun 30, 2023
SC
Last seenJun 16, 2026
TX
Inspected under 3 different carriers in 36 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
1XPBDP9X1HD410413
Make
Peterbilt
Model
579
Model year
2017
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jun 25, 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 · Jun 30, 2023 – Jun 16, 2026

DateStateLevelViol.OOSCarrier (DOT)Plate
Jun 16, 2026TXII · Walk-around3—WILHOIT BUILDERS OF TEXAS LLC 34999911N45238/TX
Oct 21, 2025TXI · Full12OOSWILHOIT BUILDERS OF TEXAS LLC 34999911N45238/TX
Jul 15, 2025TXI · Full2OOSWILHOIT BUILDERS OF TEXAS LLC 34999911N45238/TX
Mar 19, 2025TXII · Walk-around6—4K COMPANIES LLC 23632611N45238/TX
Oct 21, 2024TXII · Walk-around2—4K COMPANIES LLC 23632611N45238/TX
Jun 30, 2023SCIII · Driver-only1—KAG DRY BULK LLC 3598268R610457/TX
03

Carriers this unit has run under

3 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WILHOIT BUILDERS OF TEXAS LLC3499991Jul 15, 2025Jun 16, 20263TX
4K COMPANIES LLC2363261Oct 21, 2024Mar 19, 20252TX
KAG DRY BULK LLC3598268Jun 30, 2023Jun 30, 20231OH
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.
1N45238TX1WILHOIT BUILDERS OF TEXAS LLCJul 15, 2025 → Jun 16, 20263
1N45238TX—4K COMPANIES LLCOct 21, 2024 → Mar 19, 20252
R610457TX—KAG DRY BULK LLCJun 30, 2023 → Jun 30, 20231
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jun 25, 2026