Mercury Mariner 1992-2001 135 150 HP V6 2.0L 2.0 Outboard Powerhead PICKUP ONLY for now.   Only one cylinder has an issue, and I broke one of the hose barns off by accident.  I think the bad cylinder it will clean up as the material on walls is aluminum from the piston, may sell crank and pistons separately in future and offer shipping but pickup only for now.