This is a fully assembled kit of upgraded MK8 extrude that includes extruder drive mechanism, heating element, temperature sensor, fan and the drive motor. It is excellent quality and provides best performance for DIY 3D Printers and professional systems. Also, you can easily modify this kit to support double head extrusion. High power direct drive stepper motor 42BYGHW818 is used in this kit which enables you to print with flexible filament such as TPU. Also, it's less prone to clogging and jamming of the drive system.

Specifications:

• Name : Upgrade MK8 Extruder HotEnd Makerbot Prusa 3D Printer Parts For 1.75mm Fliament.
• Extruder head Rated Voltage：12V. Power : 40W.
• Nozzle：0.4mm/ 1.75mm fliament.
• Stepper Motor：NEMA17 42HD4027-01, 42*42*40mm. Rated Current:1.5A, Step Angle:1.8°.
• Motor cable : 6Pin PH2.0 to 4Pin SH2.54, Length 100cm.
• Feeder device：Alunminum Alloy Material with Golden color.
• Radiator：Alunminum Alloy Material with Gold color.
• Thermistor：NTC3950，with Dopunt Terminal, Length 1meter.
• Heating tube/wire：12V,40W,Length 1meter.
• Cooling fan：40*40*10mm, 12V DC, 0.12A , 2Pin.

Features:

• 42mm high quality stepper motors have high torque and less heat is build-up
• Special ceramic heating insulation cotton guarantee stability; energy saving.
• Direct transmission, without heavy gear, compact size and light weight
• Supports most filament type such as PLA, ABS, PETG, TPU, Nylon etc.

Note: Ensure that the maximum temperature does not exceed 280°C