Baystar Hydraulic Steering Cylinder HC4645-3 Outboard up to 150hp

Description Baystar Front Mount Hydraulic Steering Cylinder Outboard – Part No. HC4645-3 Up to 150HP Cylinder Capacities – SeaStar Solutions Part No. HC4645H (dash 3 – third generation) Cylinder Model: Front Mount Bore: 1.25″ / 31.7mm Shaft Dia.: .625″ / 15.9mm Stroke: 8″ / 203mm Volume: 118.6cc / 7.2 cu in Torque: N/A INTRODUCTION 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 of bringing comfort and safety to boating. BayStar is NOT recommended in applications with high steering effort (i.e. such as those using high-performance engines or boats capable of attaining high speeds), customers should consider upgrading the system to SeaStar/SeaStar Pro steering. This will reduce the steering effort due to the fact that SeaStar steering provides more output power resulting in lower steering effort. Features – Baystar Hydraulic Steering HC4645-3 Patented No FeedBack steering lock valves. 5.2 turns lock-to-lock. Up to 150 horsepower (total). Available either as separate components or as a complete system ready to install. Fixed cylinder. Requires 3″ (76mm) cut-out hole in dash (Helm) Requires 21″ (534mm) splashwell width. CAUTION DO NOT use BayStar on smaller HP outboard engines that use wing nut-type transom mount clamping screws. Notice Tilt Helm HH4315 is available separately. Currently not available in kit form.   APPLICATION GUIDE – Baystar Steering Cylinder (Cylinders HC4645H/47H/48H/58H) SKU Make Year range Capacity Notes Cylinder MPN 291071 Force 1985 to date 90–150HP — HC4645-3 291071 Honda 1992 to date 30–90HP — HC4645-3 291073 Honda 1998 – 2010 115–130HP — HC4647-3 291071 Honda 2003 to date BF135HP — HC4645-3 291071 Honda 2010 to date 115–150HP — HC4645-3 291071 Honda 2015 to date 100HP — HC4645-3 291074 Johnson / Evinrude 1977 – 1990 65–150HP — HC4648-3 291071 Johnson / Evinrude 1991 to date 40–150HP — HC4645-3 291075 Johnson / Evinrude 1997 to date 115HP Ficht 4, 5 HC4658-3 291075 Johnson / Evinrude 1998 to date 40–140HP 4-Stroke — HC4658-3 291075 Johnson / Evinrude 1997 to date 115HP Ficht — HC4658-3 291071 Johnson / Evinrude 2017 to date 75–150HP Ficht 5 HC4645-3 291071 Mercury / Mariner 1984 to date 75–150HP — HC4645-3 291072 Mercury / Mariner 1998 – 2007 46-60HP 2-Stroke — HC4670-3 291071 Mercury / Mariner 2008 to date 40HP 4-Stroke — HC4645-3 291071 Mercury / Mariner 2008 to date 60HP 4-Stroke — HC4645-3 291071 Nissan 1990 to date 120–140HP — HC4645-3 291071 Suzuki 1986 to date 150HP — HC4645-3 291071 Suzuki 1996 only 115–140HP — HC4645-3 291071 Suzuki 1987 – 2002* 115–140HP 1 HC4645-3 291071 Suzuki 1990 – 2000 90–100HP — HC4645-3 291071 Suzuki 1998 to date 40–70 4-Stroke 1 HC4645-3 291075 Suzuki 2001 to date 115–140HP 4-Stroke 1, 4 HC4658-3 291071 Tohatsu 1990 to date 40–140HP — HC4645-3 291071 Tohatsu 2014 to date 60–150HP — HC4645-3 291071 Yamaha 1998 to date 40–50HP 2 HC4645-3 291071 Yamaha 1998 to date 60HP 3 HC4645-3 291071 Yamaha 1986 to date 70–90HP 1 HC4645-3 291071 Yamaha 1997 to date 80–150HP 4-Stroke — HC4645-3 291074 Yamaha 2000 to date 25–60HP 4-Stroke 1 HC4648-3 291074 Yamaha 2010 to date 70HP 4-Stroke — HC4648-3 291075 Yamaha 2011 – 2014 90–115HP (A Series) — HC4658-3 291075 Yamaha 1997 – 2013 115A 4-Stroke — HC4658-3 291071 Yanmar 2014 to date 115B 4-Stroke (B Series) — HC4645-3 291071 Yanmar 1990 to date 27–36HP — HC4645-3 Notes: Requires spacer kit 293690 (HO5090). Engine clamp brackets must be cut or ground, and the engine through bolted onto the transom, or interference will occur, restricting engine trim and tilt. Steering hook Yamaha Part #63D-48511-00-4D required. Cylinder 291071 may be used in these applications. The pivot plate will need to be flipped before installation. Johnson 115HP 2-stroke engines require the pivot plate to be flipped. See Note 4. *Not suitable for 115-140HP. Suzuki motors manufactured in 1996 only. N.B. Dometic BayStar Plus is not recommended for Mercury 150HP Optimax DFI. BAYSTAR HYDRAULIC STEERING CYLINDER Part# HC4645H, HC4647H, HC4648H, HC4670-3 and HC4658H Balanced cylinder featuring a compact design that fits most splashwells. Part# HC4600 (No Longer Available. Replacement parts are still available) Balanced cylinder that fits most splashwells. Additional Parts Available separately: BAYSTAR HELM Part# HH4314 Super low friction helm for smooth, comfortable steering. BAYSTAR STEERING KITS – Also Available Complete BayStar kit (291561) providing the flexibility to enable the installer the ability to make whatever hydraulic hose length required, without the need for specialist swaged fittings. The two unique re-usable brass end fittings allow the installer to simply cut the hose to length and insert the brass connectors. The complete kit includes 50-foot length of outboard hose, BayStar helm, BayStar front mount cylinder, hydraulic oil, rubber boot and two re-usable hose fittings. Code Description 291071 Cylinder Capacities – SeaStar Solutions Part No. HC4645-3 Cylinder Model: Front Mount Bore: 1.25″ / 31.7mm Shaft Dia.: .625″ / 15.9mm Stroke: 8″ / 203mm Volume: 118.6cc / 7.2in3 Torque: N/A 291490 Front Helm Pump – 1.4 Front MountDisplacement: 22.9cc / 1.4cu in Relief Valve Setting: 70bar / 1000psi 291902 Hydraulic Oil – 1L 293001 Adjustable Outboard Hose Kit – Rubber BootQty Req.: 1 293050 50′ Seastar Standard Outboard Hose 297332 Re-usable Hose Fitting.