16953-ZW6-003 Petcock Lever - Overview. The 16953-ZW6-003 Petcock Lever is an essential component in Honda marine engine fuel systems. This lever functions as the fuel control mechanism, allowing boaters to easily turn the fuel supply on or off in their marine engines. Designed to fit Honda's fuel delivery systems precisely, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM Honda part designed to operate the fuel petco