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Service bulletin TSB1900180129201

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 id10154252
Published by NHTSA2019-03-11
Manufacturer's numberTSB1900180129201
Manufacturer's date2019-01-29
NHTSA componentENGINE AND ENGINE COOLING; EQUIPMENT

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of unexpectedly high or low oil pressures that do not generate one of the following fault codes: FC415, FC435, or FC143. This issue was caused by a new lubricating oil pump released to production with different flow characteristics that do not affect function of the lubricating oil system.

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, Equipment and accessories

Vehicles listed
CUMMINS ISX
CUMMINS ISX15
CUMMINS X15

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