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Service bulletin T2179

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 id10162955
Published by NHTSA2019-07-22
Manufacturer's numberT2179
Manufacturer's date2019-06-28
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

This Temporary Repair Practice is being issued to address oil leaks at the air compressor/gear housing interface on certain X15 CM2350 X114B/X116B, and ISX CM871 E engines, due to excess material on the engine block. This field action authorizes certified repair locations to remove material as directed in the Cylinder Block Rework Instructions.

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

Vehicles listed
CUMMINS ISX
CUMMINS X15

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