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Service bulletin TIBU-6580

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 id10043946
Published by NHTSA2012-05-02
Manufacturer's numberTIBU-6580
Manufacturer's date2012-03-23
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

CATERPILLAR: CERTAIN REMANUFACTURED CYLINDER PACKS FOR 3400 SERIES ENGINES CONTAIN IMPROPERLY INSTALLED PISTON RINGS. *KB

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine

Vehicles listed
CATERPILLAR CATERPILLAR

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