40201-ZVD-701ZA Case Nhb14m - Overview. The 40201-ZVD-701ZA Case Nhb14m is a crucial extension case component for Honda marine engine systems. This genuine OEM part is designed to support the structural integrity of your marine engine assembly, ensuring seamless operation and durability. By maintaining exact factory specifications and material standards, it guarantees optimal compatibility and performance, critical for reliable marine engine functionality.. Key Features. Genuine OEM extension case designed specifically for Honda marine engines.. Provides structural support and protects vital internal components of the engine system.. Manufactured to precise factory dimensions and tolerances for perfect fit.. Constructed with durable materials to withstand harsh marine environments including saltwater exposure.. Ensures seamless integration with existing hardware, seals, and housings.. OEM styling preserves original engine performance, durability, and operational feel.. Why Choose Genui