The grip filler, throttle lever, steering system. Original Yamaha F15, F20, F25 OEM 66M421190100 outboard engine. The grip insert, throttle lever, steering system is a 100% original, unused product of the Yamaha OEM manufacturer with part number 66M421190100. The shifter insert, throttle lever, steering lever fits, among others: for F15, F20, F25, but the full compatibility list can be found in the table below. The product is new, unused and comes from official Yamaha OEM distribution