Equipment unit · VIN-decoded · NHTSA vPIC

2020 Kenworth T4 Series

3BKBLJ9X1LF403535 · Truck · INCOMPLETE VEHICLE

Carriers run under2

24 mo

Inspections3

all-time

OOS inspections0

of 3

First seenOct 9, 2023

Last seenOct 30, 2025

Inspected under 2 different carriers in 24 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.

Decoded identity

From the 17-character VIN via NHTSA vPIC

VIN: 3BKBLJ9X1LF403535
Make: Kenworth
Model: T4 Series
Model year: 2020
Body class: Truck
Vehicle type: INCOMPLETE VEHICLE
GVWR: Class 8: 33,001 lb and above (14,969 kg and above)
Decoded at: Aug 2, 2026

vPIC returns make / model / year / body class / GVWR. Fields it does not resolve are shown as Not decoded rather than guessed.

Inspection history

Every roadside inspection of this VIN, newest first · Oct 9, 2023 – Oct 30, 2025

Date	State	Level	Viol.	OOS	Carrier (DOT)	Plate
Oct 30, 2025	UT	II · Walk-around	3	—	R D YATES & SONS 1543807	4EZK5/UT
Mar 12, 2025	UT	I · Full	5	—	R D YATES & SONS 1543807	4EZK5/UT
Oct 9, 2023	UT	II · Walk-around	1	—	BURTON LUMBER CORP 559442	Z072715/UT

Carriers this unit has run under

2 distinct carriers · grouped by DOT · newest activity first

Carrier	DOT	First seen	Last seen	Insp.	State
R D YATES & SONS	1543807	Mar 12, 2025	Oct 30, 2025	2	UT
BURTON LUMBER CORP	559442	Oct 9, 2023	Oct 9, 2023	1	UT

Names are left-joined from the FMCSA census; a DOT with no census match falls back to its number.

Plate & unit-number history

The same truck under different plate registrations across carriers

Plate	State / prov.	Unit no.	Carrier	Date range	Insp.
4EZK5	UT	—	R D YATES & SONS	Mar 12, 2025 → Oct 30, 2025	2
Z072715	UT	—	BURTON LUMBER CORP	Oct 9, 2023 → Oct 9, 2023	1

Sources: FMCSA SAFER · L&I · NHTSA vPIC · decoded Aug 2, 2026