90003-PNA-000 Bolt - Overview. The 90003-PNA-000 bolt is an essential component within Honda marine engine systems, specifically designed for use as a tensioner pivot bolt. This bolt supports the mechanical integrity and precise operation of timing chain tensioners, ensuring that the engine's timing components remain properly aligned and under tension. Reliable performance and structural stability are critical for maintaining engine efficiency and longevity, and this bolt plays a key role in tha