You can find your steering cable at www.babbittsonline.com for $163.00 bucks. When you open their home page, look to the far right hand side of the screen. You'll see you can search by part number. First box, click what type boat, "Seadoo", then in the box below it, type in this number.....277000566. That's your part number.
You'll see it come up on screen and you can order it from there for the above price, plus shipping and handling. This online store is sometimes a little high, but for your cable, it sounds like a pretty good price.
Hi, if they can't get it from Babbitts, like the ski pole i ordered. Then maybe you could try this place! I think they will source the part for you, second hand or new. http://www.seadoosource.com