91354-ZW1-701 O-Ring (3.5X35.7) - Overview. The 91354-ZW1-701 O-Ring (3.5X35.7) is a precision-engineered sealing component essential for Honda marine engine systems. Serving as a critical seal within the power trim tilt system of Honda outboard motors ranging from 75HP to 250HP, this O-Ring ensures leak-free operation and sustains optimal hydraulic function. Crafted to exact factory specifications for dimensions and tolerances, it guarantees seamless integration with existing hardware and enhan