Mercury Outboard 300 350 1960 Mark 35 Piston and Pin Assembly 718-1193A2 rings Intermediate Housing as this will not work

as this will not work with most 1970's & beyond 120hp & 140hp setups)

85hp 90hp 100hp 115hp 140hp

AQ-275 AQ-275A AQ-280 AQ-280T AQ-280T AQ-280PT AQ-280E

I'm not quite sure what exactly the other ring is

water jacket upper # 11151-94620-0ED

Mercury Outboard 300 350 1960 Mark 35 Piston and Pin Assembly 718-1193A2 rings Intermediate Housing as this will not workThis is From a 1960 Kiekhaefer Mercury 300 E 4 cylinder Thunderbolt (serial # 127258) Item Condition: Please Inspect Pictures for condition Part#'s Piston and piston pin assembly: 718 1193A2 718 1193 Piston rings: 39 20058 Other Related Models: Mark 35AM, Mark 35AE, Mercury 300M, Mercury 300E, Mercury 350M, Mercury 350E, Mercury 350M 1, Mercury 400E 1271885 thru 1356947 Years: 1958, 1959, 1960, 1961,1962 30hp 35hp, 40hp Yours should look like this