The Nemesis propeller features the most aggressive geometry available in an aluminum propeller. It has more cup for best-in-class acceleration and holding and tenacious grip in turns. Its high-rake, reduced diameter design helps maintain top-end speed. The Nemesis features a 4-blade design that improves acceleration and mid-range performance on many sterndrive powered boats. A great value for family oriented tow-sports. Vendor Part Number: 710-48-8M8027512Applications: HONDA - BF 35 hp (91-'94), BF 40 hp ('95 & newer), BF 45 hp ('91-'94), BF 50/50A hp ('95 & newer), BF 60 small gearcase. STANDARD GEARCASE MERCURY/MARINER BIGFOOT - 402-500 model Mercury ('74-'76), 402-500-700 models Mercury ('77-'84), 650 model Mercury ('72-'76), 25 hp Bigfoot 4-stroke ('05 & older), 30 hp 2 & 4-strokes ('94-'05), 30 hp SeaPro/Marathon all years, 35 hp ('84- '89), 40 hp 2 & 4-strokes (not Bigfoot) ('77 & newer), 40 hp Seapro/Marathon ('77 & newer), 45 hp ('86-'89), 48 hp Mariner all years, 50 hp 2 & 4-strokes (not Bigfoot) ('77 & newer), 55 hp Seapro/Marathon ('95 & newer), 60 hp Mariner ('76), 60 hp 2 & 4-strokes (not Bigfoot) ('78 & newer), 70hp ('83 & older) *For 1976 applications and older, replace attaching hardware from original installation. TOHATSU - 30 hp (35B Only, '84 & earlier), 50 hp (50D only, 1991), 40hp ('84 & newer), 50hp ('92 & newer)YAMAHA - T25 all years, 40 hp ('84 & newer), F40 4-stroke ('99 & newer), 48 hp ('95-'00), 50 hp (Excluding T50, '84 & newer), F50 4-stroke ('99 & newer), 55 hp ('76-'95), 60 hp ('76-'91), F60 4-stroke (2002 & newer). Improves mid-range performance Great for sterndrive powered boats | Nemesis 4-Blade Propeller / Aluminum, 10.3 dia x 13, RH