SeaStar BayStar Outboard CylindersWholesale Marine has a wide range of engine parts and steering components for outboard motors for all your repair, maintenance, and upgrading needs.Upgrading your mechanically steered boats is easy. The Baystar Outboard Cylinder manufactured by Seastar and continues to bring safety, comfort, and tradition to boating. Its superior design is manufactured to create smooth comfortable steering for your smaller outboard engines rated up to 150 HP (Total). Baystar uses only the finest materials and precision manufacturing. The outboard cylinder's compact design and affordability make it an ideal solution. Developed for fast easy installation, it fits most splashwall and allows full engine movement. Baystar cylinders are not intended for use with high speed performance type boats and should consider SeaStar cylinders.** Mercury Optimax should use SeaStar Cylinders MANUFACTURER YEAR MODEL CYLINDER NOTES FORCE 1985DATE 90150 HP HC4645H HONDA 1992DATE 3090 HP HC4645H 19982009 115130 HP HC4647H 2001DATE 150 HP HC4645H 2003DATE BF135 HP HC4645H 2010DATE 115150 HP HC4645H JOHNSON / EVINRUDE 19771989 65150 HP HC4648H 1991DATE 40150 HP HC4645H 1997DATE 115 HP FICHT HC4658H See Notes 4, 5 1997DATE 75150 HP FICHT HC4645H 1998DATE 40140 HP 4-Stroke HC4658H See Notes 1, 4 MERCURY/MARINER 1984DATE 75150 HP HC4645H NISSAN 1990DATE 120140 HP HC4645H SUZUKI 1986DATE 150 HP HC4645H 1996 ONLY 115140 HP N/A 19872002 115140 HP HC4645H See Note 1 19902000 90100 HP HC4645H 1998DATE 4070 4-Stroke HC4645H See Note 1 2001DATE 115140 HP 4-Stroke HC4658H See Notes 1, 4 TOHATSU 1990DATE 140140 HP HC4645H YAMAHA 1998DATE 4050 HP HC4645H See Note 2 1998DATE 60 HP HC4645H See Note 3 1986DATE 7090 HP HC4645H See Note 1 1997DATE 80150 HP 4-Stroke HC4645H 2000DATE 2560 HP 4-Stroke HC4648H See Note 1 2010DATE 70HP 4-Stroke HC4648H 19972013 115A 4-STROKE HC4658H 2014-DATE 115B 4-STROKE HC4645H YANMAR 1990DATE 2736 HP HC4645H Notes Requires Spacer kit part # 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 must be installed; Cylinder HC4645 may be used in these applications. The pivot plate will need to be flipped before installation. Instructions provided with Owner's Manual.; Johnson 115 HP 2-Stroke engines, require the pivot plate to be flipped. See Note #4.;