Seastar Hydraulic Cylinder Splashwell Outboard HC5380-3

$1,027.65 inc GST

or 4 payments of $256.91 with Wizit learn more

Splashwell Mount Outboard Cylinder

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On Backorder

SKU: 291008 Categories: ,

UPC: 731957900784

Condition:  New

On Backorder

Due to size - item will be posted regular post.



Seastar Splashwell Mount Outboard Cylinder HC5380-3

Designed to fit almost any outboard


• Fits engines with or without tilt tube as per ABYC/NMMA/BIA standard, provided they have a 3⁄8″ 24 UNF thread in the steering arm

• Twin axis, swivelling mount end enables cylinder to be located in most splashwells

• Anodised alloy cylinder body for reduced friction and extended seal life

• Chromed stainless steel push rod for longer seal life

Selecting a Splashwell Mount Outboard Steering System

1. Select a compatible system configuration based on the number of engines and total engine power

2. Select the 291199 tie bar for dual engine installation

3. Select the appropriate helm and accessory hardware for each steering station

4. Select the fitting and hose kits required for the installation

5. Confirm that there is sufficient space available in the splashwell and dash areas for the steering components N.B. Unbalanced cylinders have unequal wheel turns. When the helm is turned one turn, a certain volume of fluid is pumped into the cylinder. On one side of an unbalanced cylinder piston is the push rod, which reduces the effective cylinder volume. The cylinder area on the other side of the piston has no push rod. The rod side of the piston will move faster per turn of the wheel because less space is available for fluid than on the side with no rod. single unbalanced cylinders cannot be used in conjunction with SeaStar® Pro helm.


Cylinder Displacement: 180.9cc (11 cu. in) 152.1cc (9.3cu in)

Bore: 31.7mm (1.25″)

Stroke: 228mm (9″)

6.5 turns lock to lock Single Engine (Single Cylinder)

Applications up to 300HP maximum.

Number of turns – 6.5 Maximum speed – 50kts

Dual Engines (Single Cylinder) Non-counter rotating applications up to 300HP maximum. Counter rotating engine applications up to 600HP maximum.

Notes: Not recommended for use with installations in which: a. Chopper, cleaver or surface-piercing propellers are used b. The engine is highly elevated on the transom c. Engine trim tabs have been removed d. The boat speed exceeds 50 knots e. The power exceeds maximum recommendations for the boat N.B. Other influences in the boats type, hull shape, weight, height of motor, type of propellers, engine and hull geometry have effects on the handling of the vessel. Guides within this section are typical set ups. For fitting to unusual or special combinations, please contact us. Steering systems installed using outboard hose require 293602 when adding a second station/pilot.

Additional information

Additional information




Price does not include shipping. Product will be shipped via Toll / Australia Post / Courier. Product can also be collected.





Shipping & Delivery
Prices do not include shipping.

Shipping quotes can be obtained by adding products to the cart and inputting your postcode.

$11.60 Brisbane Express - Postcodes 4000-4209, 4270-4299, 4500-4549, 9000-9725 up to 20kg

Boat Hut uses Toll Ipec Priority Service, Australia Post Express Post and Courier's Please. Boat Hut uses Australia Post or DHL International Service for New Zealand deliveries.

Free Local Pickup – by prior arrangement. We don’t always have all the products at our Acacia Ridge premises, but they may be at our warehouse. Warehouse collections can be arranged by prior arrangement - please contact us to discuss.

Order Tracking provided on all orders.

All orders will be processed within 2 business days - except backordered items. If we are unable to meet this timeframe we will contact you to provide details and options. If we are unable to ship your order within 3 business days we will offer you a refund in full or the option to wait for the goods to come into stock.

We are happy to ship to any country - and will provide a quote upon request. All overseas orders must be paid for via Paypal before your order is shipped.

Above pricing refers to regular size items that will fit in courier satchels - oversized items will require a freight quote.

Boat Hut reserves the right to refuse to fulfil an order that has the incorrect postage / freight collected at the time of sale. We will work with you to rectify the matter, if we are unable to come to a resolution then we will provide a refund in full.


Stock Availability
Boat Hut has approx 100,000 product lines coming from a number of warehouses across Australia. Not all of these products are available for a walk-in purchase at Acacia Ridge - most times you will need to make arrangments in advance. Please feel free to contact us to confirm our stock at Acacia Ridge or in our warehouses. We try our best to keep the website up to date with current stock holdings. We will accept back orders on out of stock items. All products are genuine & come with manufacturer's warranties.