Prop Markings?

[North Beach]

I have a build thread going on the restoration forum and asked this question there with no response, so I thought I'd try here.

Again, The boat is 21'7", is powered by a slightly bored (040)110 HP Mercruiser and the whole deal weighs in at 2050 empty. I'd like to get a new prop and I'd like to forego the taking three or four to the lake and trying them out routine.

I found the following markings on my worn out prop. Can one of you more knowledgable folks tell me what they mean so I can order a new one?

.W .W
-21
12660
14-251

It's a three blade.

Also, what would be the better route stainless or aluminum?

 

[a70eliminator]

Re: Prop Markings?

Looks like a service repair number, pitch and diam. is usually stamped into the inside hub area. I'm would guess it's a 14X21, worthless info but it's a reply.

 

[180shabah]

Re: Prop Markings?

Stainless v. aluminum? 3 blade or 4?

Click mercruiser props at the top of the page, scroll down and on the right is the propeller help center. it's a quick read, but covers the basics.

 

[North Beach]

Re: Prop Markings?

Thanks guys! I'll pull the prop and see if there's anything on the inside.

 

[Windykid]

Re: Prop Markings?

Why did they stop stamping them 10X15 and so on. what does the new numerical reference mean???????????