WenmarOpen by Wenmar Pro

Service bulletin T2012B

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 id10159528
Published by NHTSA2019-05-13
Manufacturer's numberT2012B
Manufacturer's date2019-04-16
NHTSA componentENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

This TRP authorizes certified repair locations to replace and provide coverage for failed Nox sensors on certain ISL9 engines that are outside of base warranty coverage. This is an updated to a previously submitted communication.

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
CUMMINS ISL9

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