1989 powerhead replace 1999

trainerwall

Recruit
Joined
Jan 8, 2012
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2
I am trying to find a powerhead to fix my 1999 25m mariner outboard I have found a 1989 25 hp mercury powerhead but do not know if the block is the same or if all the bolt holes would line up. please help
 

Faztbullet

Supreme Mariner
Joined
Mar 2, 2008
Messages
15,589
Re: 1989 powerhead replace 1999

1988 and up 20/25hp motors will fit as the only difference is the old ones are a chrome bore and the new ones are a Mercosil block that can be bored if damaged and carb size.
 

trainerwall

Recruit
Joined
Jan 8, 2012
Messages
2
Re: 1989 powerhead replace 1999

Thanks for the reply I just didn't want to spend my money on it and it not fit. Is there pros or cons between the two.
 
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