Raymarine forum

I could not find the differences in the various packages. Which EV product would be suitable for a Meridian 459 cruiser?(40,000 lb twin diesel with North star autopilot) Currently have installed a Ray E97 . Would I need to replace the hydraulic pump?
Can I use the current rudder position sensor?

You might be able to work with the existing Northstar hydraulic pump, I would need the model number to confirm. This will also determine if you need the EV-200 or EV-400 system. You will need to replace the existing rudder reference unit, the Evolution system will only work with a Raymarine (tested) rudder reference sensor.