{"product_id":"seastar-pro-hk7500a3-hydraulic-steering-kit-without-hose-1-hk75004","title":"SeaStar Pro HK7500A3 Hydraulic Steering Kit | Without Hose | Up to 350 HP","description":"\u003ch2\u003eSeaStar Pro HK7500A3 Complete Hydraulic Steering Kit — Without Hose\u003c\/h2\u003e\n\u003cp\u003eA complete hydraulic steering system built for high-performance outboard applications — bass boats, flats boats, and performance hulls capable of speeds exceeding 65 MPH. Everything needed to install a full SeaStar Pro hydraulic steering system is included, except the hose, which is selected separately based on your boat’s specific routing.\u003c\/p\u003e\n\u003cp\u003eAt the heart of the kit is the \u003cstrong\u003eSeaStar Pro 2.0 cu.in. front mount helm (HH57703)\u003c\/strong\u003e — a low-friction, high-precision helm engineered to eliminate the chatter, feedback, and vagueness that cable steering and lower-grade hydraulic systems produce at high speed. Paired with the \u003cstrong\u003eHC63453 front mount cylinder\u003c\/strong\u003e, this system delivers locked-in, responsive control even with high-performance propellers and jack plates in the mix.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003ePart Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eKit Part Number:\u003c\/strong\u003e HK7500A3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e SeaStar Solutions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOfficial Product Type:\u003c\/strong\u003e Complete Hydraulic Steering Kit (Hose Not Included)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Hydraulic Outboard Steering System\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Engine Rating:\u003c\/strong\u003e 350 HP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Speed:\u003c\/strong\u003e 65+ MPH\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eKit Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHH57703\u003c\/strong\u003e — SeaStar Pro 2.0 cu.in. Front Mount Helm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHC63453\u003c\/strong\u003e — SeaStar Pro Front Pivot Mount Outboard Cylinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHA5430\u003c\/strong\u003e — SeaStar Hydraulic Steering Oil, 2 × 1 Quart\u003c\/li\u003e\n\u003cli\u003eInstallation instructions\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eHose not included — select separately based on helm-to-cylinder routing\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle outboard engines rated up to 350 HP\u003c\/li\u003e\n\u003cli\u003eHigh-performance bass boats, flats boats, and performance hulls running 65+ MPH\u003c\/li\u003e\n\u003cli\u003eSetups with jack plates or high-performance propellers where steering loads exceed cable system capability\u003c\/li\u003e\n\u003cli\u003eBoats with a 3\" dash hole (or larger, with adapter) for front mount helm installation\u003c\/li\u003e\n\u003cli\u003eSteering wheels with standard 3\/4\" tapered shaft bore — confirm hub adapter compatibility before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eHelm Specifications (HH57703)\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 2.0 cu.in. per turn\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurns Lock-to-Lock:\u003c\/strong\u003e 4.25\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Hole Required:\u003c\/strong\u003e 3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelm Footprint:\u003c\/strong\u003e 4-7\/16\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft:\u003c\/strong\u003e Standard 3\/4\" tapered\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort Type:\u003c\/strong\u003e ORB (O-Ring Boss)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eGreatly reduced steering chatter from overrunning loads at high speed\u003c\/li\u003e\n\u003cli\u003eImproved check valve durability for longer service life\u003c\/li\u003e\n\u003cli\u003eEliminated flow noise when coming off hard-over position\u003c\/li\u003e\n\u003cli\u003eTighter regrip performance for precise corrections at speed\u003c\/li\u003e\n\u003cli\u003eCompact helm footprint — fits most performance boat dash panels without modification\u003c\/li\u003e\n\u003cli\u003eCompatible with high-performance propellers and jack plates\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eRelated Products\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11124711522340\"\u003eSeaStar Pro HH57704 High-Performance Hydraulic Helm — 2.0 cu.in., Long Stud, Front Mount\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11120006430756\"\u003eSeaStar Pro HC63453 Front Pivot Mount Outboard Cylinder — 8\" Stroke\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11120006496292\"\u003eSeaStar HP6032 Helm Seal Kit — SeaStar, SeaStar Pro, BayStar \u0026amp; BayStar Plus\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/11124711850020\"\u003eSeaStar BayStar HH43144 Hydraulic Helm — 1.4 cu.in. (Up to 150 HP)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eService Interval\u003c\/h3\u003e\n\u003cp\u003eInspect hydraulic steering fluid level and condition annually. Replace fluid if it appears discoloured, milky, or contaminated. Inspect hose connections and cylinder for leaks at each seasonal commissioning. Rebuild or replace helm seals if steering feels spongy, loses pressure, or shows fluid weeping at the helm body — see the \u003ca href=\"\/products\/11120006496292\"\u003eSeaStar HP6032 Helm Seal Kit\u003c\/a\u003e for seal service.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What hose do I need to complete this kit?\u003c\/strong\u003e\u003cbr\u003eA: Hose is not included and must be selected based on your boat’s helm-to-cylinder routing. Measure the run from the helm to the cylinder and add 20–30% for routing curves. SeaStar hose kits are available separately — contact us if you need help selecting the correct length and fitting type.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this kit work with my existing steering wheel?\u003c\/strong\u003e\u003cbr\u003eA: The helm uses a standard 3\/4\" tapered shaft. Most marine steering wheels are compatible, but confirm your wheel’s hub adapter fits a 3\/4\" tapered shaft before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can this system handle twin outboards?\u003c\/strong\u003e\u003cbr\u003eA: The HK7500A3 is designed for single outboard applications. Twin-engine hydraulic steering requires a different cylinder and helm configuration — contact us for twin-engine steering recommendations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this compatible with a jack plate?\u003c\/strong\u003e\u003cbr\u003eA: Yes — this is one of the primary use cases for the SeaStar Pro system. The higher-displacement helm and front mount cylinder are specifically suited to the increased steering loads that jack plates and high-performance props create.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e The HK7500A3 is the right choice for customers building a complete hydraulic steering system on a high-performance bass boat, flats boat, or any outboard-powered performance hull running over 65 MPH — especially with a jack plate or aggressive propeller in the mix. Buying the kit rather than individual components ensures all parts are matched and compatible out of the box, and simplifies the ordering process.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCommon issues we see:\u003c\/strong\u003e The most frequent oversight is forgetting to order hose — this kit does not include it. Customers also occasionally order without confirming their steering wheel hub adapter fits the 3\/4\" tapered shaft. Before completing the sale, confirm the customer has hose selected and the correct hub adapter for their wheel.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51215082618916,"sku":"1-HK75004","price":2920.39,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/1-HK75004.jpg?v=1786150091","url":"https:\/\/marisolmarine.com\/products\/seastar-pro-hk7500a3-hydraulic-steering-kit-without-hose-1-hk75004","provider":"Marisol Marine Company","version":"1.0","type":"link"}