Synchro-Start APECS 2000 SA-4389 G Electronic Engine Speed Controller - Used

Synchro-Start APECS 2000 electronic engine speed controller, P/N SA-4389 G, S/N 10995. 9-30 VDC input; drives an APECS proportional actuator with P/I/D tuning, remote speed input, and fault-code LED. Application: electronic governing of diesel engines using a compatible APECS actuator. Condition: Used, untested — sold as-is. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.