Nautamaran
2004 140” HRC 2500 (Crewed)
This is the exhaust for the diesel fired coolant heater located behind the headlamp. Made by Eberspacher (aka “Espar”) this “boost heater” is activated by the bow-tie shaped “bacon button” in the centre of the right button on the a/c panel. There are numerous threads here on their care and upkeep…Wow Dave! Thank you!
Ok, And what is this?
It's on the inner front fender, driver side.
View attachment 381319

-dave