Description

Sierra’s 18-73990 Propeller Nut Kit is designed for use in Yamaha 40 HP (1984-2001), 50 HP (1984-1995), C55 HP, and F40-F50 HP (1995-2000) outboard engines. The kit contains: (1) Sierra 18-2380 Cotter Pin, (1) Sierra 18-3732 Propeller Nut, and (1) Yamaha Outboard 663-45987-02-00 Thrust Washer. It is interchangeable with Mallory 9-73990 and Yamaha Outboard 6H4-W4599-00-00 and 6H4-WPROP-00-KT. Check manufacturer recommendations to ensure a proper fit before purchasing. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use in Yamaha 40 HP (1984-2001), 50 HP (1984-1995), C55 HP, and F40-F50 HP (1995-2000) outboard engines
See long description for list of included components
Interchangeable with Mallory 9-73990 and Yamaha Outboard 6H4-W4599-00-00 and 6H4-WPROP-00-KT
Check manufacturer recommendations to ensure a proper fit before purchasing
Each Sierra product meets or exceeds the original equipment part it replaces