GM Fuel Injector Rail Return Line Bolt At Head 2001-2004 GM 6.6L Duramax LB7 97257826This bolt is at the end of the return rail under the valve covers.
For 2001, 2002, 2003, 2004 GM 6.6L Duramax LB7
GM Fuel Inlet to Filter Hose 2006-2010 GM 6.6L Duramax LBZ LMM 12625281For 2006, 2007, 2008, 2009, 2010 GM 6.6L Duramax LBZ LMM
Can also be used on a LLY with the addition of a LBZ cold air intake...