Missing trim tab, need to know which replacement to order.

arrkerr

Petty Officer 2nd Class
Joined
May 7, 2009
Messages
105
I have a 91 boat with a 1990(?) alpha one gen 1 (sn is impossible to read). I started to disassemble the drive for maintenance and I noticed that my trim tab is completely missing! I have no idea how this happened, either it wasn't on there when I got it (bought used earlier this year) or someone stole it :-(.

iboats.com lists multiple trim tabs for my generation of alpha1, Sierra 18-6011 and Sierra 18-6012 and a Quicksilver Anode/Trim Kit.

Since I don't have the original, I can't get the part # from it.

Anyone know which one I'm supposed to have, or what the difference is?
 

Bt Doctur

Supreme Mariner
Joined
Aug 29, 2004
Messages
19,344
Re: Missing trim tab, need to know which replacement to order.

flat, short fin, long fin, longer fin.All depends on the prop clearance
 

arrkerr

Petty Officer 2nd Class
Joined
May 7, 2009
Messages
105
Re: Missing trim tab, need to know which replacement to order.

Ah.... so get the biggest one I can clear?
 
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