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Service bulletin TSB260110

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 id11037034
Published by NHTSA2026-09-04
Manufacturer's numberTSB260110
Manufacturer's date2026-08-10
NHTSA componentENGINE

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution steps for the lubricating oil fill and top off procedures for certain ISL G, L9 and L9N engines which may not be followed in some applications, causing the engine to be overfilled with lubricating oil due to failure to allow sufficient time for the lubricating oil to drain back before checking or refilling, resulting in lubricating oil slosh, connecting rod dipping, excessive soot or soot plugging of the EGR cooler or fault codes 2961, 2962, 3361, 3382, 3383 or 7232 being triggered.

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 ISL G
CUMMINS L9
CUMMINS L9N

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