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Service bulletin TSB210266-111020

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 id10227534
Published by NHTSA2022-12-12
Manufacturer's numberTSB210266-111020
Manufacturer's date2022-11-10
NHTSA componentPOWER TRAIN; ENGINE AND ENGINE COOLING

NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of closed crankcase ventilation (CCV) breather assembly lower bearing corrosion, damage, and/or debris not allowing the CCV motor to achieve functional speed.

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, Transmission and driveline

Vehicles listed
CUMMINS ISX12

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