Upgrade your FLSUN V400 with this Complete Hotend Kit — a fully assembled, high-performance hotend designed for reliable, high-temperature printing. Featuring an all-metal structure, a high-efficiency bi-metal heatbreak, and precision-machined nozzles, this kit is built for both everyday printing and demanding engineering filaments. With support for temperatures up to approximately 300°C, The included thermistor and heater cartridge offer fast heating and precise temperature control, helping you achieve consistent, high-quality prints every time. Installation is straightforward thanks to the modular, V400-compatible design. Simply remove your old hotend and mount this assembly in its place — no complicated adjustments needed. Durable full-metal construction ensures long service life, while simple nozzle and component access makes maintenance easy. Whether you're replacing a worn-out hotend or upgrading for better performance, this complete kit delivers reliability, improved print quality, and extended material support for your FLSUN V400.