115 hp mercury lower unit

[papspontoon]

need help. dummy here trying to find out if a lower unit will fit my engine...

lower unit 1667-9011J29 MPN

S/N OT341774 M/N 115 ELPT4S

I don't understand why it is so hard to find a conversion chart

thanks for any help..

 

[Chris1956]

How about a year for the motor? SEI makes replacement gearcases.

 

[Faztbullet]

Sorry but it is wrong ratio and DS may be a tad different on spline end.

 

[papspontoon]

How about a year for the motor? SEI makes replacement gearcases.

sorry 2001

 

[papspontoon]

View attachment 348595
Sorry but it is wrong ratio and DS may be a tad different on spline end.

thanks.. I think I need the 2.07:1 ratio not the 2.33:1 I wasn't sure how much of a difference there would be. currently have a 60 hp bigfoot with 2.33:1 ratio changing to 115 hp. It's going on a 26 ft pontoon. grandkids want to tube. however when they are on the boat we have about 10 people aboard. Hoping the 115 hp makes a difference. thanks again