first it would help to know year and model # of both motors, there are a heck of a lot of 9.9 and 6's. you can compare part #s here, http://shop.evinrude.com/ also, you can get superceded #'s at ishopmarine.com to cross reference.
we all need to support iboats marine store when ever possible. you get, competitive prices. fast shipping, top notch customer service. also it provides us, this great FREE forum.
we all need to support iboats marine store when ever possible. you get, competitive prices. fast shipping, top notch customer service. also it provides us, this great FREE forum.