New cable, for mercury marine rotary ride guide?
 

Have a chris craft stinger 311 original tilt steering system with mercury marine rotary ride guide helm, does this use the same cable as acco steermaster?
https://cimg7.ibsrv.net/gimg/www.off...30d7d442e2.jpg
https://cimg0.ibsrv.net/gimg/www.off...448b598f74.jpg

Probably not,....

Try looking up Steermaster Mark II or Mark III cables. Most are discontinued, however there is a site that has them made up once a year. They sell what they have then you have to wait until their next run. Check you cable length, it should be on the cables sheathing.