OMC Cobra Prop

[79Rude115]

What props will fit a 90 5.7 Cobra? Will a prop from a Mercruiser Alpha One fit?

 

[Dhadley]

Re: OMC Cobra Prop

That Cobra should have the 15 spline propshaft. If so, any OMC / Evinrude / Johnson prop with a 15 spline hub will fit right on. If you get a new style prop with a square bore you can get the correct hub kit and you'll be all set. The Merc props won't go on without some modifying.

 

[79Rude115]

Re: OMC Cobra Prop

That Cobra should have the 15 spline propshaft. If so, any OMC / Evinrude / Johnson prop with a 15 spline hub will fit right on. If you get a new style prop with a square bore you can get the correct hub kit and you'll be all set. The Merc props won't go on without some modifying.

Thanks! Is the Merc a different spline count or something else? I ask because I have a guy who is selling one, he says from a Alpha One, said it is a 15 tooth spline.

 

[Bondo]

Re: OMC Cobra Prop

Thanks! Is the Merc a different spline count or something else? I ask because I have a guy who is selling one, he says from a Alpha One, said it is a 15 tooth spline.

Nope,... It's spline Depth...along the propshaft...