Equipment unit · VIN-decoded · NHTSA vPIC

2021 Peterbilt 579

1XPBDP9X9MD742674 · Truck-Tractor · TRUCK
Carriers run under4
29 mo
Inspections8
all-time
OOS inspections2
of 8
First seen02/13/2024
GA
Last seen07/15/2026
GA
Inspected under 4 different carriers in 29 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
1XPBDP9X9MD742674
Make
Peterbilt
Model
579
Model year
2021
Body class
Truck-Tractor
Vehicle type
TRUCK
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
06/21/2026
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 · 02/13/2024 – 07/15/2026

DateStateLevelViol.OOSCarrier (DOT)Plate
07/15/2026GAII · Walk-around1OOSWWH INC 2954205DF20KW/FL
05/20/2026NMIII · Driver-only0—TOP TRUCKING LLC 3460347DF55JK/FL
03/05/2026KSII · Walk-around3—JWJ EXPRESS LLC 4144419DF55JK/FL
01/11/2026AZII · Walk-around0—JWJ EXPRESS LLC 4144419DF55JK/FL
11/26/2025NMI · Full2OOSJWJ EXPRESS LLC 4144419DF55JK/FL
11/13/2025SDIII · Driver-only0—JWJ EXPRESS LLC 4144419DF55JK/FL
09/05/2025FLIII · Driver-only0—JWJ EXPRESS LLC 4144419DF55JK/FL
02/13/2024GAIII · Driver-only0—PAM TRANSPORT INC 1797523050801/IN
03

Carriers this unit has run under

4 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
WWH INC295420507/15/202607/15/20261IL
TOP TRUCKING LLC346034705/20/202605/20/20261IA
JWJ EXPRESS LLC414441909/05/202503/05/20265FL
PAM TRANSPORT INC17975202/13/202402/13/20241AR
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.
DF20KWFL1WWH INC07/15/2026 → 07/15/20261
DF55JKFL—TOP TRUCKING LLC05/20/2026 → 05/20/20261
DF55JKFL—JWJ EXPRESS LLC09/05/2025 → 03/05/20265
3050801IN—PAM TRANSPORT INC02/13/2024 → 02/13/20241
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded 06/21/2026