Mitsubishi 4G69 engines produced from June 2007 and later have been built according to a new design that eliminates the oil accumulator and its mounting hole.

Replacement cylinder heads follow this new design. When installing a new-style cylinder head on an engine that originally featured an oil accumulator, the accumulator is not required.

The oil accumulator in the cylinder head is no longer used in replacement heads for the 4G69 engine.

The oil accumulator in the cylinder head is no longer used in replacement heads for the 4G69 engine.

Applicable vehicles include 2003-2006 Outlander, 2004-2006 Lancer and Lancer Sportback, 2004-2007 Galant, 2006-2008 Eclipse and 2007-2008 Eclipse Spyder.

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