VEVOR Hydraulic Steering Kit, 300 HP, Marine Boat Hydraulic Steering System, with 6.9 MPa/1000 psi Helm Pump, Two-Way Lock Cylinder, and 26ft High-Strength Hoses, for Single Station, Single-Engine Use Aluminum Alloy Housing Replaceable Shaft Seal ORB Hose Fittings Two Hydraulic Hoses Wide Compatibility Easy DIY Installation Lock-to-Lock Turns (Pump): 7.5 ± 0.5 turns,Stroke: 200 ± 2 mm,Rod Diameter: 18 ± 0.5 mm,Applicable Engine Horsepower: Up to 300 HP,Color: Black,Item Model Number: YSH-300HP-B,Steering Wheel Mount Thread: 5/8"-18 UNF,Cylinder Capacity: 142 ± 10% mL,Material: Aluminum Alloy + 304 Stainless Steel,Max Working Pressure: 6.9 MPa/1,000 psi ± 10%,Bore Diameter: 35 ± 0.5 mm