Temp/Speed Transducer replacement

Sans Souci

Sans Souci

Member
Oct 11, 2019
35
Lake St.Clair
Boat Info
1997 400ec
Engines
454 Mercruiser
Has anyone replaced the speed/temp transducer for the tridata ray marine display. I have a 97 express, replaced the old i40 (no direct replacement ), so upgraded to the i50. All worked fine for two seasons, till this past weekend. Depth still functioning correctly, separate transducer , the temp/speed transducer (port side) not working. It appears to be easily replaced by unscrewing the old and replacing it with a new transducer. Having issues with the p/n for the transducer? Any help with the p/n (part number) and replacement procedure will be appreciated. thanks in advance....
 
Here is the one for my boat and likely same for yours. This is the speed and temp. May not be made anymore. This one is smaller diameter than the one for depth. As for installation, just unscrew the old one, pull it out, and shove the new one in. Make sure to lube the o-rings well. Likely easier and more updated is the DST810 which gives all 3-temp, speed, and depth. I just installed one on Tuesday. It has bluetooth compatibility as well.

upload_2022-9-8_12-55-7.png


Bennett
 
...just make sure to get the correct one. The OEM unit for speed and temp is smaller in diameter than the one for depth. You should have a blanking plug beside each one and you can look at them to see the difference in diameter or as Orlando says above, get the DST810, change it out with your depth transducer, and you will have all 3-measurements on one transducer.

Bennett
 
I have a 2004 420 that has a Sea Ray Navigator that I am planing to replace with a Garmin 1243xsv. My current transducer is an airmar for depth and temperature. Does anyone know if this will work with the Garmin?
 
SRMark said:
I have a 2004 420 that has a Sea Ray Navigator that I am planing to replace with a Garmin 1243xsv. My current transducer is an airmar for depth and temperature. Does anyone know if this will work with the Garmin?
Click to expand...

I have a Garmin 7616xsv and have an airmar hooked up to it. I would get the model number off of the transducer and email or call Garmin to be sure. I am almost positive it will work. Connection may be an issue unless via a N2K network.

Bennett
 
Thanks. I will get the number next time I am at the boat.
 
SRMark said:
I have a 2004 420 that has a Sea Ray Navigator that I am planing to replace with a Garmin 1243xsv. My current transducer is an airmar for depth and temperature. Does anyone know if this will work with the Garmin?
Click to expand...

This adapter box should work, but you need to get the pinout from Airmar/Garmin. So you will need the transducer model number. But these should work. I am about to do the same thing with an older transducer on the same display. You will need adapter cables no matter which route you go. But your original transducer is most likely a 4-6 wire plug that is no longer directly supported and needs adapter cables.

6 pin
https://www.garmin.com/en-US/p/85642/pn/010-11612-00

8 pin
https://www.garmin.com/en-US/p/511579/pn/010-12122-10

or manually wire, if your transducer plug doesn't look like the lower pic.
https://www.garmin.com/en-US/p/522475
https://static.garmin.com/pumac/12-pin_Transducer_Adapter_Install_EN-US.pdf


This is some older pinouts - possibly your vintage:
Old Transducer-Pinout.jpg
 
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I have removed the Sea Ray Navigator and will be installing the Garmin this weekend. The plug for the depth is a computer style end. Do I cut this end off and wired it to the Garmin 12 pin to bare wire box or is there a female connector on the Airmar cable attached to this computer style cable somewhere in the wire bundles under the dash?
 
SRMark said:
I have removed the Sea Ray Navigator and will be installing the Garmin this weekend. The plug for the depth is a computer style end. Do I cut this end off and wired it to the Garmin 12 pin to bare wire box or is there a female connector on the Airmar cable attached to this computer style cable somewhere in the wire bundles under the dash?
Click to expand...

What are you calling "computer style" ? But my previous post pretty much answers your question.
 
The Sea Ray Navigator is basically a PC that is windows based. All the connections on the back of the screen are VGA connectors.
 
I am pretty sure it is not as easy as cutting the plug off, stripping wires, and connecting them. At best, there will be an adapter that will work for you. The new transducer I installed plugged right into my N2K "T." The old transducer would have had to be wired to an adapter plug of some type if it would have even worked at all. Somehow you need to get from a 5-pin to the Garmin 6-pin.

Bennett
 
SRMark said:
The Sea Ray Navigator is basically a PC that is windows based. All the connections on the back of the screen are VGA connectors.
Click to expand...

Thanks, I overlooked the Navigator part. Was still one first cup of coffee ... I know that thing well. But if you cut off the DB9 connector you should still have the colored wires as noted above.
 
I have an Airmar P17 transducer. Does anyone know if an Airmar DST800PV-235-n2 will fit in the thru-hull sleeve?
 
SRMark said:
I have an Airmar P17 transducer. Does anyone know if an Airmar DST800PV-235-n2 will fit in the thru-hull sleeve?
Click to expand...

Looking at the installation instructions for both, they fit the same size housing. Do you have two transducers-one mounted in the ER forward bilge and one mounted in the aft bilge? If so, the bigger of the two is in the aft bilge and will fit.

Bennett
 
I only have the one in the aft bilge. It was hooked up to a Sea Ray Navigator and won't work with my new Garmin 1243xsv. They show the dimensions for the outside of the housing but not for the inside diameter. I plan to measure the blanking plug and compare that to the DST800 when it arrives. My P17 was depth and temperature only and this one has the speed also.
 
Update on Garmin 1243sxv and transducer. After many attempts at making the P17 transducer work I gave that up and purchased a new DST800 with a NMEA2000 backbone. I switched that out with the boat in the water. The cord provided on the DST800 was not long enough to reach the helm. I needed to get an additional 19 ft NMEA2000 backbone cord. The install is now complete and working. Thank you bbwhitejr and Skybolt for your help.
 
SRMark said:
Update on Garmin 1243sxv and transducer. After many attempts at making the P17 transducer work I gave that up and purchased a new DST800 with a NMEA2000 backbone. I switched that out with the boat in the water. The cord provided on the DST800 was not long enough to reach the helm. I needed to get an additional 19 ft NMEA2000 backbone cord. The install is now complete and working. Thank you bbwhitejr and Skybolt for your help.
Click to expand...

It is a thrill swapping the transducer in the water isn't it?

Bennett
 
It sure is. The trick is to be prepared and stay calm, although it's hard not to panic when you pull the old transducer out and the water starts gushing in. The other key thing, if you are using the old housing is to swap out the yellow o-ring on the new transducer with the black o-ring supplied. I also attached the old blanking plug to the new transducer because the new one also had a yellow o-ring on it. After that it was just a few hours of crawling around and contorting myself to route the cable to the helm.
 
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