For outboard powered boats up to 140 horsepower (Total) Maximum. Kit comes complete with everything needed for an install. The cylinder utilizes the factory outboard engine supplied drag link for simplified installation. Two lengths of 20' cut to fit tubing are supplied. Kit includes: BayStar Helm Pump(HH4016), BayStar Cylinder (HC4600), BayStar Tubing Kit(HT4425), 2 Bottles of hydraulic steering fluid (HA5430), and Filler Kit (HA5438).