The Dometic BayStar HK4300-4 steering system is ideal for Outboard Motors up to 150hp with a maximum speed of 80kph. This new -4 version has new valve technology ensures quieter and more responsive steering, improved check valves making the steering  more durable and a new fill port plug design for easier access and  maintenance
About Baystar
BayStar™˙hydraulic steering is brought to you by the manufacturers of SeaStar®, the most trusted name in pleasure boat steering. BayStar allows you to install all of the safety, reliability and comfort of hydraulic steering onto your boats rated up to MAX. 150HP as rated by the engine manufacturer. Combine this with the superior SeaStar Solutions design team, rigid ISO quality control and teamed with the finest materials and precision manufacturing - BayStar continues the tradition bringing comfort and safety to boating.
Features
Super low friction helm for smooth comfortable steering
Patented No Feed Back 
Steering lock valves
5 turns lock-to-lock
Up to 150 horsepower (total)
Fixed cylinder
Requires 3" x (76mm) cut-out hole in dash
Requires 21" x (534mm) splashwell width
In the Box
1 x BayStar helm pump (HH4314-4)
1 x BayStar Cylinder (HC4645-3)
2 x Hydraulic Steering Fluid (HA5430)
Hose Kits Optional Extra ( Not Included)