MerCruiser 778-9441A3 759-8312A2 3.7L 3.7LX 470 488 190hp Piston Connecting Rod Cooling System & Hoses The one on the top

The one on the top of the first picture and in the last couple pictures looks to have been cut off a bigger piece and is slightly longer

Medium: 3767468

70hp (1985-2001)

Please find a parts diagram of your outboard to verify compatibility

MerCruiser 778-9441A3 759-8312A2 3.7L 3.7LX 470 488 190hp Piston Connecting Rod Cooling System & Hoses The one on the topPart Numbers (MerCruiser) Piston (Standard Size, but undersized for anything after 1972)) MerCruiser 778 9441A3 778 9441 (Stamped) Precedes 759 5920 10 & 759 6610 10 Found in the 1978 1982 Models and technically replaces those as well. Superseded version of 759 8312A2 & 759 806661A7 These are the later style pistons that do have the valve relief notch cut into them Connecting Rod MerCruiser 628 6100A2 628 6100T2 Connecting Rod Assembly General