Description
DOMETIC SEASTAR BayStar Compact Outboard Cylinder – HC4645-3
The Dometic SeaStar HC4645-3 BayStar Compact Outboard Cylinder is a balanced front-mount hydraulic steering cylinder for smaller outboard-powered boats. It is designed to fit compact splashwells while providing the smoother feel and reduced steering effort associated with BayStar hydraulic steering systems.
Main Features
- Balanced BayStar compact outboard cylinder for boats up to 150 hp total.
- Compact design requires approximately 21 in. of splashwell width.
- Designed to provide full engine movement in many pontoon, deck boat, fishing boat, and runabout applications.
- 7.24–7.3 cu. in. displacement range reported for this BayStar compact cylinder family.
- Not intended for high-performance applications such as bass boats or boats capable of higher speeds where SeaStar PRO may be required.
Product Specifications
- Manufacturer Part Number: HC4645-3
- Product Type: BayStar compact hydraulic outboard cylinder
- Cylinder Type: Balanced front-mount outboard
- Horsepower Rating: Up to 150 hp total
- Splashwell Requirement: Approx. 21 in. / 534 mm
- Fluid Displacement: Approx. 7.24 cu. in.
- Recommended Helm Family: BayStar hydraulic helm, when selected per Dometic guide

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