2025 Marine Catalog

GENERAL BOATING WATERSPORTS & BOATS SEATING COVERS/TOPS MAINTENANCE ELECTRICAL HARDWARE PLUMBING PROPS & ANODES FUEL ELECTRONICS & NAVIGATION SAFETY TROLLING & FISHING ANCHORING/ MOORING TRAILERING PAINT VENTILATION FASTENERS STEERING ENGINE ITEM NUMBERS IN RED ARE HAZARDOUS ITEMS IN BLUE ARE NEW ] SEA VALUE v OVERSIZED d UPS/FEDEX SURCHARGE (L) = SE & MIDWEST ONLY (K) = NE & MID-ATLANTIC ONLY (W) = WEST COAST ONLY u - WARNING Cancer Causing See www.P65Warnings.ca.gov v - WARNING Reproductive Harm w - WARNING Cancer and Reproductive Harm SECTION 1285 STEERING Features helm rotor supported by 3 roller bearings, ball bearing piston race, simplified integrated metal construction, field replaceable shaft seal, -5 ORB port threads, internal pressure relief valve, front of dash fill, lock valve for positive rudder lock, patented bleed tubes and internal air pocket to eliminate oil expansion overflow. Compact and stylish. Fits 3'' dash hole for round look with retro fit of 41/ 2'' dash hole for standard square look. Equipped with adjustable O-ring fittings to simplify the installation process and allow for simple reorientation of the fittings after installation. Helms with part numbers ending in "3" are equipped with adjustable O-ring fittings allows for simple reorientation of the fittings after installation. Item# Type Mount List 1-HH52714]c Dometic 1.7 Front 821.99 EA SEASTAR HELM Item# Description List 1-HA5419 20° Dash Mounting Wedge Kit 161.39 EA For standard helms. Allows a Dometic helm to be mounted 20° from perpendicular (not for BayStar). DASH MOUNTING WEDGE KIT Item# List 1-HA5418 81.89 EA Square backplate kit for the 5271 and 5272 Dometic helms. Used to retrofit new Dometic standard helm into hole cutouts BACK MOUNT KIT Item# Description List 1-HS5147 Kit for Older model BayStar helms HH4016 & HH4015 w/ plastic housing 28.39 EA 1-HP6032 Kit for Dometic helms 1990- newer, Baystar HH4313, HH43133-3 HH4315, HH4315-3 21.19 EA HELM SERVICE KITS Outboard steering offers models of steering cylinders to suit most applications. Side mount cylinders are unbalanced and offer 4.8 or 5.7 turns lock-to-lock. It is suitable for shallow splashwells and use on engines fitted with power steering. For single engines to 300 hp and multiple outboard engine installations with total power to 600 hp in counter rotating applications. Splashwell Mount cylinders are an unbalanced, light duty alternative to front & side mount with 5.5 or 6.5 turns lock-to-lock for engines with or without support tubes. For single engines to 300 hp and multiple outboard engine installations with total power to 600 hp in counter rotating applications. It can be transom or hull mounted. SEASTAR OUTBOARD CYLINDER HC53703 HC53803 Item# Type Description List 1-HC53703 Side Mount Side Mount Cylinder - 125-8 808.49 EA 1-HC53803(K) Splashwell Mount Splashwell Mount 125-9 1043.19 EA Item# Type Description Mount List 1-HC53453] Front Mt. Pivot 962.29 EA 1-HC53473(K) Front Mt. Honda 115-130 hp 1180.69 EA 1-HC54453 Front Mt. "Honda 225-250HP 4-stroke" 1120.89 EA 1-HC53483(LK) Front Mt. OMC 1180.69 EA 1-HC53583 Front Mt. Yamaha 4-stroke Pivot 1076.89 EA Repl. Parts Description List 1-HP6016(LK) Support Rod for all front mount O/B cylinders including HC53453 (Not for use with PRO cylinder) 162.39 EA 1-HO5090 Spacer Kit 56.59 EA 1-HA5822(LK) Bolt w/Nylock Nut 41.69 EA 1-HP6033 Mounting hardware for O/B pivot plate cylinder HC5345 97.19 EA 1-HP6031c(K) Mounting hardware & slide plate for OB cylinder for HC5340 and HC5342 Only 544.79 EA Updated cylinders fit the same applications as the prior models. Improvements over previous models include: Updated styling, a more robust barrel, new sealing systems and materials with excellent resistance to compression set, and new adjustable stainless steel O-ring fittings (ORB). Front Mount cylinders are balanced and the most commonly used. Recommendations: Single Engines: Single Cylinder: 350 HP-Max, 65 MPH-Max HC53xx Cylinder (See note 1) Single Cylinder: 350 HP-Max, HC63xx Pro or HC6845S (See note 2) Dual Engine Non-Counter Rotating: Single cyl: 450 hp max, 55 MPH max. HC53xx Cylinder, HO60xx Tiebar Dual cyl: 600 hp max, 55 MPH max. HC53xx Cylinders, HO60xx Tiebar Dual Engine Counter Rotating: Single cyl: 600hp max, 55 MPH max. HC53xx Cylinder, HO60xx Tiebar Dual cyl: 600 hp max, 55 MPH max. HC53xx Cylinders, HO60xx Tiebar Triple Engine One with Counter Rotating: Dual cyl: 900 hp max, 55 MPH max. HC53xx Cylinder, HO60xx Tiebars Triple cyl: 900 hp max, 55 MPH max. HC53xx Cylinders, HO60xx Tiebars Note 1. Dometic has specific steering equipment for boats that are driven aggressively, used in severe conditions or with more than 300 HP per engine. Before ordering, determine the best application for the boat based on hull design, speed, and usage. For higher speed single engine applications, Seastar recommends the use of Seastar PRO cylinders. SEASTAR FRONT MOUNT OUTBOARD CYLINDER Front Mount HC_cylinder Item# Type Description List 1-HC53753 Front Mt. Catamaran Cylinder 1337.19 EA The SeaStar front mount pivot cylinder is for Catamaran designs. This cylinder will fit ALL engines that require HC5345 steering cylinder. The internal o-ring is designed to limit the amount of fluid bypass decreasing the amount of re-alignment. This cylinder is best used in applications that require a liquid tiebar. Adjustable stainless steel O-ring fittings (ORB). SEASTAR FRONT MOUNT OUTBOARD CATAMARAN CYLINDERS

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