• Mercury/Mariner Flo-Torq SSR Heavy Duty Hub-Kit – OEM Part #8M0101601
• Applications: Mercury/Mariner Outboards With 19 Splines – 1.1/4″ Shaft – Rated Up to 450hp – Racing Sport & Torque Master Gearcases , 225-250hp Pro XS With Torquemaster II Gearcase, Verado 300-350hp With 5.44″ HD Gearcase

Alternatives:
. For Use With current Mercury/Mariner FourStroke outboards 40 CT – 225hp With 15 Splines – 1″ Shaft Motors (Not Mercruiser), use the Flo-Torq SSR Solid Hub Kit #8M0150151
. For  Mercury FourStroke + Sterndrive Engines 150hp up to 300HP  With a 1″ propeller shaft, use the Flo-Torq SSR Solid Hub Kit#8M0101602
. For Mercury/Mariner Racing Sport & Torque Master Gearcases, Verado 200-300hp, Mercruiser Bravo One XR & XZ Sterndrives, use the Flo-Torq Solid-Hub Kit#840389KO6 
. ForMercury V/6 Fitted With: Fury , Tempest Plus, Trophy Plus, Revolution 4 & Bravo One Propellers in a surface piercing application, use the Flo-Torq II #835257Q 6
. For Mercury / Mariner 40-60HP Command-Thrust/Bigfoot + 70hp to 300hp, Verado up to 300hp , MerCruiser Alpha & Bravo One (under 400 HP), use the Flo-Torq II #835257K 1