Pistons/connecting rods

Joined
Jul 31, 2011
Messages
16
hi all, just wondering what is the year range that these pistons/connecting rods will fit.

MERCURY 50HP PISTON 743--3192, CONNECTING ROD 619-3194

this is what i have on my 72 merc 500 50hp thunderbolt

will this fit a 1975 merc 500 50hp thunderbolt motor.

thank you all
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
Re: Pistons/connecting rods

The piston for both engines supersedes to the same number (780-9229A7). One can them assume they both will fit in the same hole...
The connecting rods for both engines use the same number, which also supersedes, to 632-7621A3...

Chris......
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,938
Re: Pistons/connecting rods

just wondering what is the year range that these pistons/connecting rods will fit.

MERCURY 50HP PISTON 743--3192
These rods have bolts and lock nuts and fit 1968-1982 50hp engines. Then they went to a "crack cap" rod and it just uses a bolt thus the superseded number. Same on the piston as it was a 3 ringer and now a 2 ringer.
 
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