I did one and it worked fine. Only problem I had was I used an extention cable and the color code is different. If you don't know how to use a digital multi meter you will never get it right. If you buy a broken transducer that is the same as yours there should be no problem. Colors will be the same, I'm pretty sure. Not sure what 'ducer you are doing, but I did a DI/SI on a 998. Make sure to solder joints and use shrink tube over joint and use shielding where ever it is in the undamaged part.
"I'd rather be fishing!"