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Service bulletin TIBU-6940-00

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 id10051916
Published by NHTSA2013-04-19
Manufacturer's numberTIBU-6940-00
Manufacturer's date2013-02-26
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:GASOLINE; ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

CATERPILLAR: CONNECTING RODS ON SOME 3304 AND 3306 GAS AND DIESEL ENGINES HAVE FAILED. *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 33006B1990
CATERPILLAR 33041990 to 1991
CATERPILLAR 33061990 to 1991
CATERPILLAR 3306B1990

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