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Flexball 4500-EE21

Regular price $9,910.00 AUD
Regular price Sale price $9,910.00 AUD
Sale Sold out
Free Shipping Australia wide.
Engine Throttle Input Type
Gearbox Actuation Type
CANBus Extension Harness Length


If you don't know your Engine Throttle Input Type or Gearbox Actuation, please click here.

This system controls 2x Electronic Engine and 2x Electronic Gearbox. It connects via CANBus to 1x Flexball 4500 Single Throttle Station.

The Flexball 4500-EE21 throttle control system is a durable and precise solution for your vessel. With its solid build and precision controls, it offers reliability and ease of use. This system is designed to easily replace and install any old throttle controls, making it a versatile choice. Compatible with all makes and models of electronic marine engines, the Flexball 4500-EE21 ensures smooth and efficient control for your marine vessel. The control system offers an extremely smooth feel and operates providing extreme precision control through the RPM range from idle to full throttle. 

Installation is simplified with a multi-volt 9-32V voltage input necessary only to power the actuator box. All throttle stations are linked via a single CANBus harness connected in a “daisy chain” setup for effortless connection. You can add an unlimited number of throttle control stations to all Flexball systems.

The actuator box is mounted within the engine room and connects electronically to the engine wiring harness and also to the electronic solenoids on the gearbox. It is important to note that whatever voltage is required for the gearbox solenoids is the voltage that the actuator box must receive from the vessel’s battery system. 

The 4500-EE21 kit includes all components required for connection.


  • 2x Actuator Box - 9-32V
  • 1x 4500 Single Lever Throttle
  • 1x T-splitter
  • 2x Actuator Box Supply Plug
  • 1x 3m CANBus Extension Harness
  • 1x 10m CANBus Extension Harness
  • 2x 5m Engine Throttle Harness
  • 2x 5m Gearbox Solenoid Harness
  • 1x Installation Manual

Download the Product Brochure


This is a special order item and will take approximately 12 weeks lead time from date of order. We will be in touch with you to discuss your engine requirements in detail.

Note: photographs for illustration purposes only.

Note: Systems to suit sterndrives requiring trim controls please contact THT for a custom quote.