14510-ZW5-003 Tensioner - Overview. The 14510-ZW5-003 Tensioner is a crucial component in Honda marine engine systems, specifically designed for timing belt tension control. This tensioner maintains appropriate tension on the timing belt, ensuring correct synchronization of the engine's internal components for reliable and smooth operation. By preserving the timing belt tension, it helps prevent slippage and misalignment, safeguarding engine performance and longevity.. Key Features. Precise timi