14442-ZW5-000 Exhaust Rocker Arm B - Overview. The 14442-ZW5-000 Exhaust Rocker Arm B is a crucial component in Honda marine engine systems. This part plays an essential role in the valve train system, specifically facilitating the motion needed to open and close exhaust valves during engine operation. Built to exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda part engineered for pre