Trophy Sport propeller is designed for use on 40 hp through 60 hp Mercury and Mariner Bigfoot/Command Thrust outboards. Can also be used on 25 hp Bigfoot/Command Thrust outboards, 30 hp two-cycle, 30 hp through 55 hp Mercury and Mariner SeaPro/Marathon outboards, 30 hp 4‑stroke (1994 through 2005), 40‑60 hp 2‑cycle and 4‑Stroke (excluding Bigfoot/Command Thrust 1977 and newer). For optional Flo-Torq hubs, thrust washers, aft washers and prop nuts, please see your owner’s manual. Mercury Marine’s passion for performance is matched by your drive for the new, the unknown. Our legendary reliability and durability let you boldly embrace your next adventure—large or small—knowing you’re backed by the best quality design, engineering, and materials.