Can someone identify this lower unit? How can it be confirmed?

[sbklf]

I am use to older (70's and 80's) omc 3 cyinders. This lower unit looks very similar to OMC. It has a 20 spline drive shaft (as opposed to the 4 spline on my OMC) but a 13 spline output shaft that will accept an OMC prop. The shift rod has a kick instead of an offset like my OMC. I had a Suzuki once and I believe the prop on it was the same. The shift rod cover seems to be larger than OMC and it has an exhaust coupling/extension (not shown) of some sort I do not remember seeing. I will post this in Suzuki and OMC forums hoping someone can ID it. I googled some casting #'s off the unit housing and water pump but nothing came up. How can I positivly make an ID it?

 

[marinemech1]

Re: Can someone identify this lower unit? How can it be confirmed?

it looks like a late 70's early 80's v-4 gearcase. You should be able to see the omc trade marks on it.
Wayne

 

[ezeke]

Re: Can someone identify this lower unit? How can it be confirmed?

That's an OMC gearcase all right. Look in the bottom of the cavities behind the water pump for a casting number.

marinemech1 is certainly correct; the later models would have an inset for the anode. Earlier ones would have a skeg with the rear line perpendicular to the prop shaft rather than diagonal.