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Service bulletin 43-061

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10164400
Published by NHTSA2019-09-05
Manufacturer's number43-061
Manufacturer's date2019-08-30
NHTSA componentENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

Information Only - Instructions to follow diagnostic steps in RMI for DTC P-3938 to prevent unneeded replacement of urea quality sensors.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine, Exhaust and emissions

Vehicles listed
PACCAR PACCAR

Listing a model year does not mean every vehicle of it is concerned: the document says which.