Hydraulic steering piston model UC128-OBF/1, front mounted (starboard version), suitable for almost all 2 and 4-stroke outboard engines on the market. The cylinder is constructed with high-strength stainless steel rods, seals, and linkage assemblies, easy to install.

The stroke of the UC128-OBF/1 piston is 185mm , with a volume of 120cc , an output force of 450 kg and an internal diameter of 35 mm (1.37"). | Adjustable boss fittings for easy installation , with a pipe size of 5/16". | Includes a high-strength stainless steel connection pin (ULTRABOLT). | Recommended for use with Ultraflex rudders from UP25, UP28, UP33, and UP39 series. | Replaceable cylinder end caps. | Not recommended for use in installations where the vessel's speed exceeds 55 mph (48 knots) / (65 mph (56 knots) in applications with dual engines, dual cylinders, and counter-rotating motors, and therefore not intended for use in competition applications .