SeaStar PRO Front Mount 2.0 Hydraulic Marine Steering Helm HH5770-3 Designed for critical high speed performance applications like bass and flat boats, SeaStar Pro is the ultimate steering system for high-speed single engine outboards Positionable Stainless Steel O-Ring (ORB) Fittings for easy hose routing Compact helm has only a 4-7/16 footprint and needs only a 3 dash hole 4.25 turns lock-to-lock with 2.0 Cubic Inch Displacement INSTALLATION NOTE: Do NOT attempt to install an NPT pipe fitting into a -3 helm hose fitting port. Doing so will lead to irreparable damage to the helm