41100-ZX2-E02ZA Gear *NHB14M* Case - Overview. The 41100-ZX2-E02ZA Gear *NHB14M* Case is a crucial component in Honda marine engine systems. This genuine OEM gearbox casing houses and protects the internal gears that are vital for the drivetrain's reliable operation. Designed to meet factory specifications, it ensures seamless integration with existing parts, maintaining optimal performance and durability.. Key Features. Genuine OEM gear case housing designed to protect and secure the gearbox co