Component:A combination of 1 x TP3018 fuel filter,1 x 12642623 fuel filter head,1 x 12639277 water in fuel indicator sensor.
Fitment: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.
12642623 Fuel filter head:Made of billet aluminum,electrophoresis process to protect it from oxidation and corrosion,easy to clean.Includes a heater plug.The aluminum air bleeder screw on the head which replaced plastic OEM screw was more durable.
Water in fuel indicator sensor:Fit 2001-2011,8 sided desigh,which is not same as OEM’s 12 sided.Let the Engine Control Unit(ECU) and/or dashboard lamp indicator know when water detection has occurred in the vehicle's fuel supply.