Hy i look for a Mercury-Mercruiser 841064T01 COOLER Power Steerin !!
Mik

Been looking around and as you probably know the actual part is NLA. They do make and sell the replacement part 899745T02 which is a kit. Being a kit it cost more

http://www.mercruiserparts.com/899745t02-cooler-kit-p-s

Yes unfortunately I must probably again deeply grab into the money bag