90055-ZVL-010 Tensioner Bolt - Overview. The 90055-ZVL-010 Tensioner Bolt is an essential component in Honda marine engine systems. This bolt secures the tensioner, a critical part responsible for maintaining proper belt tension within the engine's drive system. By ensuring optimal tension, the bolt helps keep the engine operating efficiently and reliably. Precisely engineered to match Honda factory specifications, it ensures seamless integration with existing parts, maintaining optimal performa