An engine's thermostat regulates the temperature of the engine by controlling coolant flow, its job is to block the flow of coolant to the radiator until the engine has warmed up.
Symptoms of a bad or failing thermostat: high temperature reading and engine overheating; low temperature reading and underheated engine; temperature changing erratically; coolant leaks around thermostat housing or under vehicle.
NOTE: If the thermostat has a jiggle pin, check valve, or other feature to assist in bleeding air from the system in a vertical installation, the jiggle pin should be located at the north or 12 o'clock location.

The Thermostat Compatible with Ford 6.0 Powerstroke Diesel :
2004, 2005 E350 Club Wagon
2004, 2005, 2006, 2007, 2008, 2009, 2010 E350 Super Duty
2003, 2004, 2005 Excursion
2003, 2004, 2005, 2006, 2007 F250 Super Duty
2003, 2004, 2005, 2006, 2007 F350 Super Duty

Replaces Part #: RT-1169, RT1169, 3C3Z-8575-AA, 3C3Z8575AA thermostat.

NOTE: This is NOT a genuine part, it's a aftermarket replacement part manufactured by Allmotorparts.

NOTE: To ensure accurate fitment, please confirm your vehicle information in the above compatibility section and the description.