14510-ZY9-003 Cam Chain Tensioner - Overview. The 14510-ZY9-003 Cam Chain Tensioner is a critical component of the Honda marine engine system. It functions within the engine's timing system to automatically adjust the tension on the cam chain. By doing so, it maintains proper engine timing and ensures smooth, reliable engine operation. Designed specifically for Honda marine engines, this OEM part fits perfectly, sustaining the engine's performance and longevity.. Key Features. Precisely regulate