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Replacement (paddle wheel) for Airmar P32 triducer

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Replacement (paddle wheel) for Airmar P32 triducer

Old 03-01-2012, 08:27 AM
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Default Replacement (paddle wheel) for Airmar P32 triducer


I bought an 1989 Sea Ray 180 last summer and am now working through a list of things to fix. Among those, the boat has an Airmar P32 transom mounted triducer (speed, depth, water temp) connected to an old Silva Sea Data instrument. Both the speed and depth reading works pretty bad but it's the speed I need most so I'm going to start troubleshooting there. I have a few instructions on how to do that but I need your expertise on what my options are if parts turn out to be defective.

I've heard the magnets in the paddle wheel goes bad after a while. The paddle wheel looks exactly like this: http://www.blueheronmarine.com/Airma...wheel-Kit-7084 but this paddle is for a through-hull transducer. I tried to search the Internet for a P32 paddle but nothing much has turned up. In addition there seems to be another P32 model with a "square" type of paddle wheel (see http://www.imarineusa.com/AirmarP32-235-Faria.aspx), not sure if newer or older than mine. Does anyone know where I can find a replacement wheel for my P32? Will the paddlewheel for the thru-hull (first link above) fit the P32 as well?

If it turns out that it's not the paddle wheel that's faulty (or if I can't get a replacement wheel) I guess I need to change the whole triducer. Should I "upgrade" to another Airmar version like P66 or P58 rather than a new P32? They look similar in the specification (50/200 KHz) but has 600 W RMS instead of 250 W on the P32.

Any info and pointers are much appreciated!
Old 03-01-2012, 08:39 AM
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It might be time to think about upgrading.. transducers do age over time.

Don't worry that the newer units being rated at 600 watts..that is a bonus.
It is a higher quality build...able to handle great power but the increased sensitive is to your benefit.

What is your model number of your sonar ?
Old 03-20-2012, 05:55 AM
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Hi semperfifishing, sorry for a late reply. I thought I subscribed to thread updates but obviously didn't.

Anyway: I don't know any model number for my Airmar P32 except that's it's has an older style paddle wheel manufactured before 2004. I found out by checking Gemeco's online catalog. The cable says "#C47 C1225" if that's any help.

Do you think replacing the paddle wheel will help or is it more common that the whole transducer needs to be changed? The cable is fitted through the transom and hidden in the motor compartment so well I can't even find it.

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