MerCruiser 470 3.7L .040" Oversize Piston 4cyl H3164-040 Silv-O-Lite 1976-1989 3hp End Cap Cover: 394-1561

End Cap Cover: 394-1561

55hp 70hp 85hp (and possibly others)

MerCruiser 88688A25 (88688A19 of the sticker) Modular Quicksilver Shift Throttle Remote Control Box Similar to 88688A14 but has a different control handle  & also 88688A26 / 88688A27 but does not have the additional wiring for the other switch

the new style that is quick connect

MerCruiser 470 3.7L .040" Oversize Piston 4cyl H3164-040 Silv-O-Lite 1976-1989 3hp End Cap Cover: 394-1561Part Number(s) Included Silv O Lite Hypereutectic Pistons H3164 040 (0. 040" Oversize) Piston & Pin Assembly (Single piston) THESE ARE 0. 040" OVERSIZE PISTONS You can get all of the information in Silv O Lite's catalog (Page 87) General Application Compatibility These were from a MerCruiser 3. 7L 170hp 224CID 4cyl "470" These would apply to the all of the 3. 7L engines from the 1976 1989 time period (RELATED, but not equivalent OEM STANDARD SIZED