Lower unit compatibility

111torrance111

Petty Officer 1st Class
Joined
Jan 8, 2006
Messages
275
Will a 1987 90 HP Mercury 3 cylinder lower unit fit on a 1984-86 90 HP Mercury in-line 6 cylinder motor?
 

111torrance111

Petty Officer 1st Class
Joined
Jan 8, 2006
Messages
275
Re: Lower unit compatibility

Thanks Laddies,<br /><br />Is there a site which show lower unit compatibility?<br /><br />As I start to look I have people calling with differnt models. Hopefully I can fine a comparison chart.<br /><br />Will a 115 HP in-line 6 work for my 90 in-line 6?<br /><br />Thanks/Jerry
 

79Merc140

Seaman Apprentice
Joined
Mar 14, 2006
Messages
47
Re: Lower unit compatibility

Most inline 6 Mercury/Mariner motors all used the same lower unit. From the mid 70's through 1988 when they were discontinued. Others can let you know exactly how far back they are compatible.<br /><br />Craig
 
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