Product Description:Up for sale is a complete upgrade combo pack for Creality K-Series 3D printers, consisting of an official Creality K Series Extruder Upgrade Kit paired with a Toolhead Blower Cooling Fan.The extruder comes in its original, brand-new sealed retail packaging. The direct drive dual-gear extrusion kit provides precise filament feeding, reduces slippage, and ensures high-speed printing stability for a variety of filaments including PLA, ABS, PETG, and TPU.The included standalone toolhead cooling fan is in its original protective bubble wrap and comes ready to install with its integrated power connector wire.Compatibility:Compatible with Creality K1, K1 Max, K1C, and K1 SE 3D printers.Also works with certain other Creality models using the K-series toolhead setup, such as the Ender-3 V3 series.What’s Included:Creality K Series Extruder Upgrade Kit (Sealed in Box) – Note: Per manufacturer specifications, this kit does not include a motor. The assembly is designed to use your printer's existing stepper motor.Replacement Blower Cooling Fan with wire connector (Wrapped in bubble wrap).Condition: New / Open Box (Extruder is factory sealed inside its retail box; fan is unused in protective wrapping).