You should be able to use your pump/actuator with just about any autopilot
, so long as the controller output can supply the power needed by the motor
Even if the controller can't handle the motor
requirements, there are motor drivers available. see http://www.comnavmarine.com/
and go to "support" and "manuals" and look at the motor controller documents.
However, most autopilot controllers should be able to handle your motor.