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Have a 2020 Mazda 6 2.0 SkyActiv G Touring. I found a slight coolant leak when looking over the engine. Definitely leaking there because I cleaned it off and it came back in the same spot after a few weeks. For the life of me, I have been unable to identify the part after days of research. I’ve attached pictures and circled the part in red. The purple area is where it is leaking. No puddles of coolant, just dried coolant, so I believe it just started. The part is bolted on the back of the engine block on the right side. It appears to be attached to the thermostat housing. The hoses running back to the dash go directly to the heating core. The third picture shows the whole part and the dirt around the part is the coolant I brushed off the nipple that is leaking. Check engine light has not come on. Any help would be greatly appreciated.
Part identification
