Equipment unit · VIN-decoded · NHTSA vPIC

2021 Kenworth W9 Series

1NKWX4EX8MR467721 · Truck · INCOMPLETE VEHICLE
Carriers run under2
23 mo
Inspections4
all-time
OOS inspections1
of 4
First seenAug 1, 2023
IA
Last seenJul 9, 2025
IA
Inspected under 2 different carriers in 23 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
1NKWX4EX8MR467721
Make
Kenworth
Model
W9 Series
Model year
2021
Body class
Truck
Vehicle type
INCOMPLETE VEHICLE
GVWR
Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at
Jul 6, 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 1, 2023 – Jul 9, 2025

DateStateLevelViol.OOSCarrier (DOT)Plate
Jul 9, 2025IAIII · Driver-only1—KNOX TRUCKING LLC 2427149OJG059/IA
Dec 20, 2023IAIII · Driver-only2—MANNING AG SERVICE 586415MXY721/IA
Oct 9, 2023IAIII · Driver-only2—MANNING AG SERVICE 586415MXY721/IA
Aug 1, 2023IAII · Walk-around2OOSMANNING AG SERVICE 586415MXY721/IA
03

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

CarrierDOTFirst seenLast seenInsp.State
KNOX TRUCKING LLC2427149Jul 9, 2025Jul 9, 20251IA
MANNING AG SERVICE586415Aug 1, 2023Dec 20, 20233IA
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.
OJG059IA—KNOX TRUCKING LLCJul 9, 2025 → Jul 9, 20251
MXY721IA—MANNING AG SERVICEAug 1, 2023 → Dec 20, 20233
Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Jul 6, 2026