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Service bulletin TSB150171

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 id10198790
Published by NHTSA2021-07-06
Manufacturer's numberTSB150171
Manufacturer's date2015-11-02
NHTSA componentEQUIPMENT; STRUCTURE; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

NHTSA's summary

During troubleshooting on engines with high mount turbochargers with top mount turbocharger actuators, lubricating oil has been found around the turbocharger sector gear and the variable geometry turbocharger actuator gear. This is normal and does not indicate that a malfunction has occurred.

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

Body and frame, Engine, Equipment and accessories, Turbocharger or supercharger

Vehicles listed
CUMMINS CUMMINS

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