This direct replacement Creality nozzle heater can be replaced yourself. 

This heater cartridge fits the following

CR-10S PRO V1/V2

CR-10 V2/V3

NOTE: Price is for 1 single heater. This is used in 24V Creality Printers only. 

• 40W 24V
• 6mm x 20mm
• Preterminated with JST Connector for 10S Pro, CR-10 V2/V3