91256-ZV5-003 Oil Seal (39.5X52X6) - Overview. The 91256-ZV5-003 Oil Seal (39.5X52X6) is a crucial component in Honda marine engine systems. This oil seal plays a vital role in preventing oil leakage and protecting internal engine parts from contaminants, ensuring reliable operation and durability. Designed to meet OEM specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. High-quality oil seal with dimensions 39.5mm in