Home/Shop by Part/Engine & Engine Management/Engine Sensors & Electrical/Knock Sensor Narrow The Number Of Models Shown By Telling Us The Year Filter Models by Year 2006 2010 2009 2008 2007 2006 2005 2004 2003 1996 1995 Choose your Hummer Model H 2006 H2 Knock Sensor 2006 H3 Knock Sensor