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SeaStar Hydraulic Steering System Cylinder Selection Guide for Outboard Engines
Below is a comprehensive SeaStar hydraulic steering system cylinder selection guide for outboard engines. We have included single-engine, dual engine+ cylinder selection information. Additionally, we have provided convenient links to hardware kit and tie bar application guides where appropriate.
Johnson/Evinrude ♦ 1991 - Date ♦ 40-300 HP Johnson/Evinrude ♦ 1997 - 2006 ♦ 75-300 HP Ficht Johnson/Evinrude ♦ 2002 - Date ♦ 200 - 225 HP 4-Stroke Johnson/Evinrude ♦ 2007 - Date ♦ 3.3L V6 200 - 250 HP Mercury ♦ 1989 - Date ♦ 75 - 300 HP Mercury ♦ 2003 - Date ♦ 150 - 300 HP XS Mercury ♦ 2004 - Date ♦ 150 - 200 HP Verado Mercury ♦ 2017 - Date ♦ 175 - 200 - 225 HP 3.4L V6 Mercury ♦ 2018 - Date ♦ 250 - 300 HP 4.6L V8 Suzuki ♦ 1986 - 2000 ♦ DT - 100 HP Suzuki ♦ 1986 - 2002 ♦ 115 - 140 HP Suzuki ♦ 1986 - 2013 ♦ 150 - 225 HP 2 & 4-Stroke Suzuki ♦ 2004 - Date ♦ DF200 - 300 HP 3.6 - 4.0L V6 Suzuki ♦ 2017 - Date ♦ DF325 - 350 HP 4.4L V6 Yamaha ♦ 1986 - Date ♦ 100 - 300 HP 2-Stroke Yamaha ♦ 1990 - 2003 ♦ 40 - 90 HP 2-Stroke ♦ Requires spacer kit #HO5090 Yamaha ♦ 1997 - Date ♦ 80 - 250 HP 4-Stroke Yamaha ♦ 2000 - Date ♦ 150 - 300 HPDI Yamaha ♦ 2007 - Date ♦ 200 - 300 HP 4.2L V6 4-Stroke Yamaha ♦ 2007 - Date ♦ F300 - F350 HP 5.3 V8 Yamaha ♦ 2012 - Date ♦ 150 - 200 HP 2.8L 4 Cylinder Yamaha ♦ 2014 - Date ♦ F115B
Mercury ♦ 1998 - Date ♦ 30 - 60 HP ♦ Requires spacer kit #HO5090 Yamaha ♦ 2003 - Date ♦ 25 - 70 HP 4-Stroke ♦ Requires spacer kit #HO5090 Johnson/Evinrude ♦ 1998 - Date ♦ 40 - 140 HP 4-Stroke ♦ Requires spacer kit #HO5090 Johnson/Evinrude ♦ 2000 - 2003 ♦ 115 HP Ficht ♦ Requires spacer kit #HO5090 Suzuki ♦ 1998 - Date ♦ 40 - 140 HP 4-Stroke ♦ Requires spacer kit #HO5090 Suzuki ♦ 2013 - Date ♦ 150 - 200 HP 4-Cylinder Yamaha ♦ 2011 - Date ♦ F115A including SHO 90 & 115 HP
Johnson/Evinrude ♦ 1991 - Date ♦ 40 - 300 HP Johnson/Evinrude ♦ 1996 - Date ♦ 75 - 250 HP Ficht Johnson/Evinrude ♦ 2002 - Date ♦ 200 - 225 HP 4-stroke Johnson/Evinrude ♦ 2007 - Date ♦ 3.3L/3.4L 200 - 250 HP Mercury ♦ 1989 - Date ♦ 75 - 300 HP Mercury ♦ 1996 - Date ♦ 75 - 200 HP 2 & 4-stroke Mercury ♦ 1998 - Date ♦ 30 - 60 HP Mercury ♦ 2004 - Date ♦ 150 - 200 HP Verado Suzuki ♦ 1986 - 2002 ♦ 115 - 140 HP Suzuki ♦ 1986 - 2015 ♦ 150 - 300 HP 2 & 4-stroke Suzuki ♦ 1986 - Date ♦ 100 HP Suzuki ♦ 2013 - Date ♦ DF150 - 300 HP Yamaha ♦ 1986 - Date ♦ 100 - 250 HP 2-stroke Yamaha ♦ 1990 - 2007 ♦ 40 - 90 HP 2-stroke Yamaha ♦ 2000 - Date ♦ 150 - 300 HPDI Yamaha ♦ 2007 - Date ♦ 200 - 300 HP 4.2L V6 4-stroke Yamaha ♦ 2014 - Date ♦ F115B
Johnson/Evinrude ♦ 2005 - Date ♦ E250 DPX Vindicator Yamaha ♦ 2003 - Date ♦ 25 - 70 HP 4-stroke
Johnson/Evinrude ♦ 1998 - Date ♦ 40 - 140 HP 4-stroke Johnson/Evinrude ♦ 2000 - Date ♦ 115 HP Ficht Mercury ♦ 2002 - 2003 ♦ 225 HP 4-stroke Suzuki ♦ 1998 - Date ♦ 40 - 140 HP 4-stroke Suzuki ♦ 2003 - Date ♦ 90 HP 4-stroke Yamaha ♦ 2001 - 2003 ♦ 80 - 250 HP 4-stroke Yamaha ♦ 2003 - Date ♦ F150 - F250 3.3L Yamaha ♦ 2011 - Date ♦ F115A including SHO 90 & 115 HP Mercury ♦ 2016 - Date ♦ 150 HP 3.0L 4-stroke
Mercury ♦ 2003 - Date ♦ 150 - 200 XS Mercury ♦ 2003 - Date ♦ 250 - 300 HP XS Suzuki ♦ 2017 -Date ♦ DF325 - 350 HP 4.4L V6 Yamaha ♦ 2007 - Date ♦ F300 - F350 HP 5.3 V8 
Part #HC6845 is the proper cylinder for single, twin single cylinder, twin dual cylinder, triple dual cylinder, quad engine dual cylinder, and quintuplet+ setups. 
Johnson/Evinrude ♦ 1991 - Date ♦ 40-150 HP Johnson/Evinrude ♦ 1997 - Date ♦ 75-150 HP Ficht Mercury ♦ 1984 - Date ♦ 75-150 HP Suzuki ♦ 1986 - Date ♦ 150 HP Suzuki ♦ 1987 - 2002 ♦ 115-140 HP ♦ Requires spacer kit #HO5090 Suzuki ♦ 1990 - 2000 ♦ 90-100 HP Suzuki ♦ 1998 - Date ♦ 40-70 HP 4-Stroke ♦ Requires spacer kit #HO5090 Yamaha ♦ 1986 - Date ♦ 70-90 HP ♦ 2-stroke Requires spacer kit #HO5090 Yamaha ♦ 1997 - Date ♦ 80-150 HP 4-stroke Yamaha ♦ 1998 - Date ♦ 40-50 HP Yamaha ♦ 1998 - Date ♦ 60 HP
Mercury ♦ 1998 - Date ♦ 40-60 HP ♦ Requires spacer kit #HO5090 Yamaha ♦ 2000 - Date ♦ 25-70 HP 4-stroke ♦ Requires spacer kit #HO5090
Johnson/Evinrude ♦ 1997 - Date ♦ 115 HP Ficht Johnson/Evinrude ♦ 1998 - Date ♦ 40-140 HP 4-stroke ♦ Requires spacer kit #HO5090 Suzuki ♦ 2001 - Date ♦ 90-140 HP 4-Stroke ♦ Requires spacer kit #HO5090 Yamaha ♦ 2011 - Date ♦ F115A including SHO 90 & 115 HP Click for more SeaStar hydraulic steering system resources Make sure you always have the right Yamaha outboard controls.
SeaStar Hydraulic Steering System Single Engine Application Guide
HC5345-3
Johnson/Evinrude ♦ 1991 - Date ♦ 40-300 HP Johnson/Evinrude ♦ 1997 - 2006 ♦ 75-300 HP Ficht Johnson/Evinrude ♦ 2002 - Date ♦ 200 - 225 HP 4-Stroke Johnson/Evinrude ♦ 2007 - Date ♦ 3.3L V6 200 - 250 HP Mercury ♦ 1989 - Date ♦ 75 - 300 HP Mercury ♦ 2003 - Date ♦ 150 - 300 HP XS Mercury ♦ 2004 - Date ♦ 150 - 200 HP Verado Mercury ♦ 2017 - Date ♦ 175 - 200 - 225 HP 3.4L V6 Mercury ♦ 2018 - Date ♦ 250 - 300 HP 4.6L V8 Suzuki ♦ 1986 - 2000 ♦ DT - 100 HP Suzuki ♦ 1986 - 2002 ♦ 115 - 140 HP Suzuki ♦ 1986 - 2013 ♦ 150 - 225 HP 2 & 4-Stroke Suzuki ♦ 2004 - Date ♦ DF200 - 300 HP 3.6 - 4.0L V6 Suzuki ♦ 2017 - Date ♦ DF325 - 350 HP 4.4L V6 Yamaha ♦ 1986 - Date ♦ 100 - 300 HP 2-Stroke Yamaha ♦ 1990 - 2003 ♦ 40 - 90 HP 2-Stroke ♦ Requires spacer kit #HO5090 Yamaha ♦ 1997 - Date ♦ 80 - 250 HP 4-Stroke Yamaha ♦ 2000 - Date ♦ 150 - 300 HPDI Yamaha ♦ 2007 - Date ♦ 200 - 300 HP 4.2L V6 4-Stroke Yamaha ♦ 2007 - Date ♦ F300 - F350 HP 5.3 V8 Yamaha ♦ 2012 - Date ♦ 150 - 200 HP 2.8L 4 Cylinder Yamaha ♦ 2014 - Date ♦ F115B
HC5348-3
Mercury ♦ 1998 - Date ♦ 30 - 60 HP ♦ Requires spacer kit #HO5090 Yamaha ♦ 2003 - Date ♦ 25 - 70 HP 4-Stroke ♦ Requires spacer kit #HO5090 Johnson/Evinrude ♦ 1998 - Date ♦ 40 - 140 HP 4-Stroke ♦ Requires spacer kit #HO5090 Johnson/Evinrude ♦ 2000 - 2003 ♦ 115 HP Ficht ♦ Requires spacer kit #HO5090 Suzuki ♦ 1998 - Date ♦ 40 - 140 HP 4-Stroke ♦ Requires spacer kit #HO5090 Suzuki ♦ 2013 - Date ♦ 150 - 200 HP 4-Cylinder Yamaha ♦ 2011 - Date ♦ F115A including SHO 90 & 115 HP
Cylinder Selection
SeaStar Hydraulic Steering System Twin Engine Application Guide
HC5345-3
Johnson/Evinrude ♦ 1991 - Date ♦ 40 - 300 HP Johnson/Evinrude ♦ 1996 - Date ♦ 75 - 250 HP Ficht Johnson/Evinrude ♦ 2002 - Date ♦ 200 - 225 HP 4-stroke Johnson/Evinrude ♦ 2007 - Date ♦ 3.3L/3.4L 200 - 250 HP Mercury ♦ 1989 - Date ♦ 75 - 300 HP Mercury ♦ 1996 - Date ♦ 75 - 200 HP 2 & 4-stroke Mercury ♦ 1998 - Date ♦ 30 - 60 HP Mercury ♦ 2004 - Date ♦ 150 - 200 HP Verado Suzuki ♦ 1986 - 2002 ♦ 115 - 140 HP Suzuki ♦ 1986 - 2015 ♦ 150 - 300 HP 2 & 4-stroke Suzuki ♦ 1986 - Date ♦ 100 HP Suzuki ♦ 2013 - Date ♦ DF150 - 300 HP Yamaha ♦ 1986 - Date ♦ 100 - 250 HP 2-stroke Yamaha ♦ 1990 - 2007 ♦ 40 - 90 HP 2-stroke Yamaha ♦ 2000 - Date ♦ 150 - 300 HPDI Yamaha ♦ 2007 - Date ♦ 200 - 300 HP 4.2L V6 4-stroke Yamaha ♦ 2014 - Date ♦ F115B
HC5348-3
Johnson/Evinrude ♦ 2005 - Date ♦ E250 DPX Vindicator Yamaha ♦ 2003 - Date ♦ 25 - 70 HP 4-stroke
HC5358-3
Johnson/Evinrude ♦ 1998 - Date ♦ 40 - 140 HP 4-stroke Johnson/Evinrude ♦ 2000 - Date ♦ 115 HP Ficht Mercury ♦ 2002 - 2003 ♦ 225 HP 4-stroke Suzuki ♦ 1998 - Date ♦ 40 - 140 HP 4-stroke Suzuki ♦ 2003 - Date ♦ 90 HP 4-stroke Yamaha ♦ 2001 - 2003 ♦ 80 - 250 HP 4-stroke Yamaha ♦ 2003 - Date ♦ F150 - F250 3.3L Yamaha ♦ 2011 - Date ♦ F115A including SHO 90 & 115 HP Mercury ♦ 2016 - Date ♦ 150 HP 3.0L 4-stroke
HC6845
Cylinder Selection
Tournament Series Cylinder Selection
HC6845
Part #HC6845 is the proper cylinder for single, twin single cylinder, twin dual cylinder, triple dual cylinder, quad engine dual cylinder, and quintuplet+ setups.
Cylinder Selection
BayStar Outboard Steering Application Guide
HC4645H
Johnson/Evinrude ♦ 1991 - Date ♦ 40-150 HP Johnson/Evinrude ♦ 1997 - Date ♦ 75-150 HP Ficht Mercury ♦ 1984 - Date ♦ 75-150 HP Suzuki ♦ 1986 - Date ♦ 150 HP Suzuki ♦ 1987 - 2002 ♦ 115-140 HP ♦ Requires spacer kit #HO5090 Suzuki ♦ 1990 - 2000 ♦ 90-100 HP Suzuki ♦ 1998 - Date ♦ 40-70 HP 4-Stroke ♦ Requires spacer kit #HO5090 Yamaha ♦ 1986 - Date ♦ 70-90 HP ♦ 2-stroke Requires spacer kit #HO5090 Yamaha ♦ 1997 - Date ♦ 80-150 HP 4-stroke Yamaha ♦ 1998 - Date ♦ 40-50 HP Yamaha ♦ 1998 - Date ♦ 60 HP
HC4648H
Mercury ♦ 1998 - Date ♦ 40-60 HP ♦ Requires spacer kit #HO5090 Yamaha ♦ 2000 - Date ♦ 25-70 HP 4-stroke ♦ Requires spacer kit #HO5090
HC4658H
Johnson/Evinrude ♦ 1997 - Date ♦ 115 HP Ficht Johnson/Evinrude ♦ 1998 - Date ♦ 40-140 HP 4-stroke ♦ Requires spacer kit #HO5090 Suzuki ♦ 2001 - Date ♦ 90-140 HP 4-Stroke ♦ Requires spacer kit #HO5090 Yamaha ♦ 2011 - Date ♦ F115A including SHO 90 & 115 HP Click for more SeaStar hydraulic steering system resources Make sure you always have the right Yamaha outboard controls.
36 comments
Do you have one to fit 70 hp force on a 16 ft spectrum
What fits a 2006 mercury optimax 90hp? Don’t see it listed on guide.
I have a 2006 Mercury 90 hp FI Tiller
What model do I need.
Hi, I have a Evinrude G2 115 HO 2020 model ( no DPS) – what will be the correct p/n for the Baystar hydraulic steering – best regards Erik
2005 mer 150 what is the price and what come with it