Note that the housing visually looked fine but upon removal of the thermostat the housing crumbled apart like rotten paper as well as the plastic crossover pipe it’s a really poor design also the wrong type of antifreeze can effect the plastic don’t use green coolant in these engines use the gold I am 160 dollars out of pocket due to defective plastic parts my Lincoln only has 67000 miles on it it’s a shame t o have to replace parts should not be having problems with