Replacing a paddle wheel in a knot meter transducer

Aug 7, 2013
48
O'day 39' 25th Anniversary Mystic, CT
As a new member to this forum community, I first would like to Thank all the contributors here for making my life as a DIY boat owner a lot easier!!! Now to question at hand. While in winter storage, I found that our knot meter paddle wheel to be in need of replacement, as the pin retaining the paddle wheel itself had been broken. In a care package of spare and replacement parts from the P.O., we found a Autopilot ST200 without the transducer. Assuming that the transducer had been installed, I used the part number listed for ordering a replacement kit. Once my order arrived, I noticed that the paddle wheel itself was smaller in diameter and width than the original. Now my question is, is this a new design possibly, could I just use the retaining pin with my old paddle wheel, or did I order the wrong part? Any advice would be greatly appreciated, Thanks