91201-434-003 Oil Seal (14X20X3.2) - Overview. The 91201-434-003 Oil Seal (14X20X3.2) is a precision-engineered component designed to support the Honda marine engine systems. It plays a vital role in maintaining the seal within various engine and mechanical assemblies, preventing fluid leaks and protecting internal parts from contamination. Engineered to the exact factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Fea