Description:

[Vehicle Fitment]: Compatible with Subaru B9 Tribeca 2006-2007, Legacy/Tribeca 2008-2009, Outback 2001-2009---H6 3.0L. [Reference Number]: UF-287, 22433-AA441, 22433-AA411, 22433-AA530, 22433-AA531, 610-58598, 1AECI00239, 4704. [Iridium spark plug]: Iridium is a type of refined alloy which is highly suitable to be used as the materials of the central electrode in a spark plug. It extends the life of the spark plug nearly threefold, ensures a more stable idle speed of the engine, and delivers a super performance to the engine with improved fuel efficiency, reduced emissions and faster starting up..