35370-ZY6-V21 Power Trim-Tilt Sw - Overview. The 35370-ZY6-V21 Power Trim-Tilt Sw is an essential switch used in the power trim and tilt system of Honda marine engines. It plays a critical role in allowing boat operators to electronically adjust the angle of the outboard motor for improved handling, performance, and fuel efficiency. This switch is designed to maintain reliable operation within Honda's marine engine systems. Its exact OEM design ensures seamless integration with existing parts, m