Hotend heating tube Creality CRE-4004060033 24V 40W 6x20 — heating cartridge for 3D printer hotend

Replacement hotend heating tube Creality CRE-4004060033 24V 40W 6x20 is a compact cartridge heater designed for use in compatible 3D printer hotends. Rated for 24 volts and 40 watts with a cylindrical geometry of approximately 6 mm diameter and 20 mm length, this heating cartridge delivers rapid warm-up and stable thermal performance required for consistent filament melting and extrusion. It is intended as a direct replacement for worn or defective heaters in Creality-design hotend assemblies and similar models that accept a 6×20 mm cartridge heater.

Advantages

The cartridge heater offers fast heat-up time and stable power delivery to maintain target nozzle temperature during prints. Its compact 6×20 mm form factor fits into many common hotend heater blocks, allowing straightforward replacement without major modifications. The 40 W power rating provides sufficient heating capacity for typical filament materials, while 24 V operation is compatible with many modern desktop 3D printers. The metal-sheathed construction enhances durability and heat transfer efficiency for consistent extrusion.

Suitable for

• Replacing a faulty or intermittent hotend heater in Creality and compatible 3D printers
• Repairing hotends that require a 6 mm × 20 mm cartridge heater
• Restoring consistent nozzle temperature for PLA, PETG and other common filaments
• Maintenance tasks to improve print stability and reduce thermal-related failures

Key specifications

• Rated voltage: 24 V
• Power: 40 W
• Physical size: 6 mm diameter × 20 mm length
• Sheath material: metal-sheathed cartridge (for effective heat transfer)
• Connection type: insulated lead wires suitable for hotend wiring
• Application: designed for hotend heater blocks in desktop FDM 3D printers

How to use

Power off the printer and allow the hotend to cool before replacing the heater. Remove the hotend from the carriage if needed and loosen the set screws or clamps securing the existing cartridge heater in the heater block. Carefully withdraw the old cartridge heater and insert the new 6×20 mm cartridge fully into the heater block bore so the sheath contacts the metal block for optimal heat transfer. Secure the cartridge with the original retention method and reconnect insulated leads to the heater terminals, observing polarity if applicable and ensuring firm electrical contacts. Verify wiring integrity and perform a controlled heat-up under supervision, monitoring temperature with the printer’s firmware or an external thermometer.

Usage recommendations

Use the heating cartridge with compatible Creality hotends and ensure the heater block bore matches the 6×20 mm cartridge size for correct fit. Replace damaged or frayed lead wires and verify the printer’s power supply supports 24 V/40 W load. Calibrate PID settings after replacement if necessary to optimize temperature stability and avoid prolonged dry heating without filament to extend heater lifespan.