Yamaha - Single Engine Key Switch Assembly | 704-8257C-03-00 MerCruiser-4-3L-MPI-Bravo-2006 This product has been superseded

This product has been superseded by: 90-8M8023467

This part is built to take on real boating conditions—long hours

A genuine Mercury Marine part ensures you’re using a filter engineered around the exact flow rates

Cable t/s g2 9 ftWARNING: This product can expose you to chemicals which are known to the State of California to cause cancer

Magnesium is the top choice for freshwater because it reacts quickly and pulls corrosion away from the components you need to protect

Yamaha - Single Engine Key Switch Assembly | 704-8257C-03-00 MerCruiser-4-3L-MPI-Bravo-2006 This product has been supersededYamaha Single Engine Key Switch Assembly 704 8257C 03 00 The Yamaha Single Engine Key Switch Assembly 704 8257C 03 00 is made for single outboard applications where a complete key switch assembly is needed without a full panel layout. It is a straightforward Yamaha rigging component for custom dashboards, service replacements, or helm builds that require dependable ignition control. The compact assembly helps keep starting functions simple and easy to