Outboard Hydraulic Cylinder Version 1 - 1.38 in. Bore x 7.8 in. Stroke | Uflex USA UC128TS-1 Uflex USA | Outboard Hydraulic Cylinder Version 1 - 1.38 in. Bore x 7.8 in. Stroke | UC128TS-1 This replaceable triple-sealed 1-3/4 inch cylinder end cartridges offer industry-leading longevity and durability. The replaceable triple-sealed 1 3/4 cylinder end cartridges offer industry-leading longevity and durability Designed for up to 600HP in certain applications 304 electropolished and passivated link assembly for peak corrosion resistance Carbon-steel piston allows less internal bypass and provides greater efficiency Ultrabolt high-strength stainless steel tiller bolt Used with outboards up to 300 hp Replaces Uflex UC128OBF-1