53140-GW0-000 Throttle Grip - Overview. The 53140-GW0-000 Throttle Grip is an essential component of Honda marine engine systems and related powersports equipment. This genuine OEM part enables the operator to control the engine's throttle precisely, facilitating smooth acceleration and deceleration. Designed specifically for Honda's marine rigging and accessories, the throttle grip supports reliable and responsive engine performance. Its construction ensures seamless integration with existing p