35640-ZW9-W51 Power Tilt Switch - Overview. The 35640-ZW9-W51 Power Tilt Switch is a critical control component in Honda marine engine systems. It is designed specifically for Honda outboard motors to facilitate electric raising and lowering of the engine, part of the comprehensive Honda-Active Marine system. This switch plays a vital role in adjusting the boat's trim to improve handling and performance, ensuring safe and reliable operation on the water. Engineered to precisely match factory spe