will a 97 fit on a 88???

gustafsonerik

Petty Officer 1st Class
Joined
Jun 25, 2006
Messages
238
Hi will a 97 120hp ss prop fit on a 88 125hp force??? both our 15 spline i know that, but i dont know if the exhausts are different??????
 

Frank Acampora

Supreme Mariner
Joined
Jan 19, 2007
Messages
12,004
Re: will a 97 fit on a 88???

97 is a Mercury lower unit. If it is a 4 1/4 diameter lower, the prop will fit. If it is 4 1/2 the prop will not.

Either measure the inside flange on the prop hub or ask the owner to do it if it is an auction. It should be less than 4 inches. Any more and it will not plug into your 88 lower unit.

According to my prop book, the part numbers are different so I would hazzard a guess that they will not swap.
 

gustafsonerik

Petty Officer 1st Class
Joined
Jun 25, 2006
Messages
238
Re: will a 97 fit on a 88???

frank ok it fits on the spline but there is like a 1/4 inch space in the back where it does fully mate up..but it holds is that ok?????????
 

Frank Acampora

Supreme Mariner
Joined
Jan 19, 2007
Messages
12,004
Re: will a 97 fit on a 88???

Clarify please. Do you mean the prop shaft is sticking out of the prop by about 1/4 inch and the nut will not tighten the prop? If so, there is a spacer that fits under the prop nut for that.
 
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