ECCPP Timing Chain Kit fits for MAZDA Speed 3 6 CX-7 2.3L TURBO 07-13 L3K9-12-4X0C FITMENT : 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 for Mazda 3 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 for Mazda 6 2003 2004 2005 2006 2007 for Mazda CX-7 PART NUMBER : L3K9-12-500AL3K9-12-201AL3K9-12-671L3K9-12-614 L3K9-12-201A L3K9-14-151 L3K9-12-425 L3K9-11-316 L3K914614 L3K911316 L3K912671 L3K914614 L3K912425 L3K9-11-316 L3K9-14-143 PRODUCT FEATURES : Premium quality link belt type timing chain for exceptional durability,Meets or exceeds OEM performance requirements,Utilizes the latest in design and material technology,ensuring quiet QUALITY: All components are closely inspected to meet the strictest quality standards to ensure a long life KIT CONTENTS: 1x Timing Chain(138 links) 1x Tensioner 1x Guide Rail (left) 1x Guide Rail (right) 1x Timing chain Sprocket (40 teeth) 1x Crank Sprocket (20 teeth) 1x Oil Pump Chain (roller chain 54 link) 1x Oil Pump Sprocket (22 teeth) 1x Guide Rail (oil pump guide rail) 1x Tensioner spring (oil pump chain tensioner) 1x Oil Pump Sprocket (23 teeth) Product description Timing Chain Chain is made of high-quality alloy steel with chain mark, reduces noise Sprocket High transmission efficiency reduces chain load Guide Good orientation, stable operation and long service life Tensioner Provides effective regulation and is extremely durable When timing chain is damaged.do I need to replace the sprocket ? Yes, ECPPP recommends replacing all componentsof the timing system at the same time. The useof worn sprockets may cause the chain to fail tomesh with the worn sprockets, resulting in poorengine performance.