11320-ZZ3-010ZA Oil Tgray Case - Overview. The 11320-ZZ3-010ZA Oil Tgray Case is a crucial component within Honda marine engine systems. This part houses and protects the engine oil, ensuring smooth lubrication and reliable engine performance. Designed to fit precisely within the oil system, it maintains the integrity of oil flow and prevents leaks to optimize engine functionality. Manufactured according to strict factory specifications, it ensures seamless integration with existing parts, maint