Mercury Kiekhaefer Outboard 10-22728 Co-Pilot Ring Screw Mark 5 6 6A KF5 KF3 Cooling System & Hoses Should fit TD-15 models as

Should fit TD-15 models as well

5hp Manual-Recoil Model Number 574

153 tooth unit

Required Hub Kit part number is Michigan Wheel XHS / XHS II (#206 HUB ASSEMBLY KIT) Available online

Stamped 2778810

Mercury Kiekhaefer Outboard 10-22728 Co-Pilot Ring Screw Mark 5 6 6A KF5 KF3 Cooling System & Hoses Should fit TD-15 models asItem Description Mercury Part Number 10 22728 Co Pilot Ring Clamp Screw found on Mark 5, 6, 6A KF5 KF3 (and possibly others). Purchase with confidence! General Disclaimer (please read) These are New Old Stock Parts from a large mercury Mark & K models cabinet I have. Some of these parts might work on more models than listed in the title and or the description, Please do your own research There might be some surface rust, missing paint, scratches,