prop number question

[rpatton]

Hi guys I have a 1986 mercruiser 120 IO with a prop that has the # 992003 stamped on it with no other numbers on it. Can anyone tell me what it means as far as pitch and diameter. I need a new one and a friend gave me one with the number 43-78118_A40_17P.
Are they the same or ??? Thanks

 

[SkiDad]

Re: prop number question

the 992003 is a 15x17p - Michigan Wheel Vortex XHS Aluminum Propeller (992003)

one your friend gave you appears to be a 14.5x17p

 

[jestor68]

Re: prop number question

The answer to your question is; yes, they are basically the same prop.

The 1/2" difference in dia will make the friend's prop run at slightly higher rpm; maybe 100 rpm faster.

 

[rpatton]

Re: prop number question

Thanks guys. Jester which one will run the higher rpm. The one I have or the one that is marked 17 p

 

[WIMUSKY]

Re: prop number question

Your friends, the one that is marked 17P. That one is the smaller diameter, 14.5". Where yours is 15". Basically, a wash......

 

[rpatton]

Re: prop number question

Thanks guys