bow and stern thruster Mfg R25

[jimbeam]

Anyone know what brand/Mfg are the bow and stern thrusters on a 2008 R25. Can't find the make/brand anywhere in the manual or on the thruster itself. Need anodes for them and nothing on that either.
Jim

 

[scross]

Our 2009 R25 has Side Power Thrusters and uses this SM31180A thruster zink:
http://www.boatzincs.com/side-power-anodes.html

and this size D prop zink:
http://www.boatzincs.com/prop_nuts.html

 

[scross]

And for the Yanmar 4BY2 & 6BY2 engines it’s this 120650-13420 engine zink:

http://www.boatzincs.com/yanmar_engine.html

Love boatzinks.com they keep track of all the part numbers on your past orders. And they are great at taking an item back if it doesn’t fit. Bought too heavy of a $$ zink plate for the transom and they took it back no problems.

 

[KennyMarrs]

Hello,

We installed sidepower thruster on our boats back then. You can also emails parts@rangertugs.com to order zincs directly from us.

Thanks,
-Kenny

 

[jimbeam]

Thanks. Looked up the anode for the thruster. Since I'm in salt water probably will need zinc anodes not aluminum.
Jim

 

[scross]

From FisheriesSupply.com:
“Which Metal Should I Choose?
Saltwater: Aluminum anodes are more active, protect better and last longer than zinc anodes in saltwater – a win/win situation. Magnesium anodes are so active in this highly conductive liquid that they completely corrode in only a few months, resulting in prohibitively high replacement costs. While zinc has been the traditional anode for use in saltwater, it doesn’t provide as much protection or last as long as aluminum.
Brackish Water: Aluminum anodes provide superior protection here. They do not suffer the fast corrosion rates of magnesium, and protect better than the less active zinc.
Freshwater: Magnesium is the clear anode of choice. It offers superior protection in this low conductivity liquid. Zinc anodes are not suitable for use in freshwater because they build up a hard, dense coating over a period of months – rendering the anode less effective. Aluminum alloys offer some protection in freshwater but not as much as magnesium – so aluminum would only be recommended if your boat is intermittently in fresh water.”

We switched to aluminum anodes for most applications on the boat.