A combination of 1 x TP3018 fuel filter,1 x 12642623 fuel filter head,1 x 12639277 water in fuel indicator sensor. TP3018 Fuel Filter 12642623 Fuel Filter Head 2004-2013 Duramax 6.6L Chevrolet Silverado and GMC Sierra Engine Chevy fuel filter.Will work on 2001 2002 2003 2004 But the hoses do need to be modified or lengthened.
