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  • Assembled MK8 extruder
    • i i
    • images/l/Geeetech_20150615035002_1.jpg images/l/Geeetech_20150615035002_1.jpg
    • images/l/Geeetech_20150615035002_2.jpg images/l/Geeetech_20150615035002_2.jpg
    • images/l/Geeetech_20150615035002_3.jpg images/l/Geeetech_20150615035002_3.jpg
    • images/l/Geeetech_20150615035002_4.jpg images/l/Geeetech_20150615035002_4.jpg
Assembled MK8 extruder


Shipping Weight:450g

Quantity in stock:999356


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This is Geeetech upgraded single head MK8 extruder, which has outstanding quality and the best performance for DIY and professional systems. By simply adding a holder, you can assemble your own dual head extrusion.
With 42BYGHW818 stepper motor, you will find it easy to solve the problems of uneven extrusion, regularly plugging and material reloading.



•    Extrusion nozzle: 0.3mm,0.35mm,0.4mm,0.5mm (optional)

•    Material of Print: 1.75mm or 3mm PLA/ABS

•    Flow rate of Nozzle: about 24cc / h

•    Sports shaft speed:40mm/s

•    Voltage of heating nozzle: 12V

•    Thermistor: 100K NTC

•    Operating voltage of cooling fan: 12V

•    Heating rods: 6mm, 12V, 30W

•    Normal working temperature: 190°-230°

•    Net weight: 450g



•    42mm high quality stepper motor with larger torque and less heat buildup

•    Special ceramic insulation cotton ensures the stability of heating; electricity-saving

•    Direct transmission, without the heavy gears, compact size and weight

•    A variety of specifications to choose, the most suitable is the best

NOTE: Make sure the maximum temperature is less than 280°


Package list:

1 x assembled Geeetech MK8 extruder


For more information, please kindly check our wiki page.

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  • Joseph Maggay | 09/05/2020

    hi, do you have the mirrored one? can you ship it to philippines?

    • Jocelin Jia | 09/10/2020

      hello, yes, we have the opposite direction/ the mirrored extruder , 2-0.4mm it is not listed on our store , you can order this extruder, but leave a comment for your order , need 700-001-0845 instead. i will change order for you when i process orders.

  • Craig Mounsey | 11/04/2019

    is this compatible with the MeCreator2?

    • Jocelin Jia | 11/06/2019

      hello, it can not be used on mecreator, you need SKU 700-001-0947, it is not listed on the website,if you need it, pls send email to sales@geeetech.com , will arrange for you offline, thanks

  • Jean-Luc Barral | 11/09/2018

    Hello, is this item compatible with a prusa I3 proB ?

    • Jocelin Jia | 11/12/2018

      yes, it can use

  • Andreas Decker | 10/29/2018

    Is this extruder for a30 ?

    • Jocelin Jia | 10/30/2018

      this extruder is used for prusa i3 series, you can send mails to victory.lei@geeetech.cn,he will arrange it offline. thanks

  • Philip Rosser | 09/09/2018

    Fast delivery and working well

    • Jocelin Jia | 09/10/2018

      Thanks your positive comments, thanks Philip

  • Andrius Stasauskas | 08/27/2018

    Can this print nylon CX12?

    • Jocelin Jia | 08/29/2018


  • Jean Paul Carré | 06/24/2018

    is that extruder compatible with A30 ? thanks

    • Jocelin Jia | 06/25/2018

      Hi Jean, this extruder is used for prusa i3 series, you can send mails to victory.lei@geeetech.cn,he will arrange it offline. thanks

  • Florindo Lopez | 06/12/2018

    These products I have not received 20180424160410607, please review your situation. Purchase date Order time: 2018-04-25 06:04:10

    • Jocelin Jia | 06/14/2018

      Hello Florindo, Can u please check double check in local post? if the parcel missing, we will send you an replacement. thanks

  • John Windle | 06/06/2018

    Hi, I ordered this extruder a week ago and have emailed orders to find out when it will be shipping and have no reply, can you tell me what is happening Order Information - 20180530032519100.

    • Jocelin Jia | 06/06/2018

      Hi John, my colleague should reply you by mails, please double check, bu the way,the parcel is send out, will send you tracking soon

  • Pietro Gramma | 05/17/2018

    Hi, I already have an optimum Geeetech PRO B with one MK8 extruder, can I apply also this eother extruder for print with two different color? If yes, I must buy only the mk8 and your holder or I must buy other products? And then, can I apply the holder with two extruder at my actual carriage or I must print onother carriage type? Thanks and ciao

    • Maria Olivier | 05/18/2018

      heelo, please visit this links:http://www.geeetech.com/forum/viewtopic.php?f=13&t=17887,here tell you how to update PROB to dual extruder

  • Nieberding David | 02/01/2018

    Hi, I bought the upgraded mK8 extruder because I had troube pushing the filament with the old one but there were no error, when I changed it to the new one I got an err:MINTEMP. I tried to put the old back and I got same error. On some forum they say it's the termistor problem but before I changed to the upgraded I had no problem and now I got the problem for bot..

    • Jocelin Jia | 03/15/2018

      Hi Nieberding,sorry for late reply.You can contact our technician for help:technical@geeetech.com,thanks

  • Dave Drolett | 12/12/2017

    I have this extruder on my I3 X. Can I print PETG with this? The motor seems to have trouble pushing the filament even at temperatures around 250C.

    • Zina Luo | 12/15/2017

      Hi Dave ,i think it's the extruder's problem ,you can contact our tech on facebook to teach you how to make it :https://www.facebook.com/groups/315127105604393/

  • E van Vliet | 11/13/2017

    Ordered this, among some other parts, over a month ago. Did not receive anything, no response either on mail, skype, etc. Bad experience..

    • Zina Luo | 11/13/2017

      Hi Vliet ,sorry for the inconvenient here ,could you pls send me your order number to check ?Sometimes shipped by small mail and when parcel arrived the courier not called to you but put the parcel at the local post ,could you pls contact to the local post for your parcel ?

  • Martin Wagner | 05/31/2017

    I do already have one of these, how can I upgrade it to dual-extrude? What spare-parts do I need?

    • Zina Luo | 05/31/2017

      Hi Martin,in order to upgrade to dual extruder ,you can buy one more extruder and the dual extruder holder.

  • Jack Quon | 03/19/2017

    Does this work with Me Ducer?

    • Zina Luo | 03/20/2017

      Hi Jack,yes it does.

    • Zina Luo | 03/20/2017

      Hi Jack,yes ,it does.

  • john beard | 03/19/2017

    hi dose this work with the anet a8 thanks

    • Zina Luo | 03/20/2017

      Hi John,you can check the specification and compare it.

  • Paulo Silva | 03/03/2017

    Hello, where can i have the stl of the aluminum part, the one where the filaments enters? thank you

    • Zina Luo | 03/06/2017

      Hello paulo,which STL you would like pls email to our sales and she will help you :sales@geeetech.com

  • JORGE M LOPES | 02/25/2017

    Hi, could you tell me if there is an extruder for the left side ? This extruder is for right side, when I use two extruders. Thank you

    • Zina Luo | 02/28/2017

      Hi Jorge,yes that we have the left hand extruder,You can remark to the order when you would like to buy.

  • Dave Dutton | 02/05/2017

    I want to buy one of these today if it will work with my Geeetech Prusa i3 A pro. It works great and I want to add another extruder to have dual extruders. thank you very much. Dave

    • Zina Luo | 02/07/2017

      Hi Dave,yes it can work with the A pro ,but if you want to upgrade your A pro to the dual extruders ,you also need the extruders holder.Pls contract to the sale for detail:sales@geeetech.com

  • William Cooper | 01/31/2017

    Excellent. Fast shipping.

    • Zina Luo | 02/07/2017

      thank you.

  • Daniel Leiva | 12/31/2016

    Hello, Is this extruder compatible with the geeetech m201?

    • rita xiang | 01/04/2017

      it is not comatible with M201, can you tell me what kind of modification do you want to do with your M201?

      • Daniel Leiva gallardo | 01/04/2017

        I was thinking of changing the extruder with mixer, which gives jamming problems, for this is simple. It would connect the injection servomotor to one of the ports of the two that it has and it would calibrate it to 100% of injection, and the probe with the resistance in its place.

  • Hubert DUPONT | 10/23/2016

    hello, I have not received it ! why ? thanks Hubert

    • rita xiang | 10/23/2016

      hello Hubert, can you please provide your order number, i will check it for you.

  • Yoshifumi Mita | 07/24/2016

    I want only Hotend of this Extruder. Can I buy it, and parts number please?

    • rita xiang | 07/24/2016

      hello, i am sorry that the spare parts are not sold separately.

  • Dawid Reps | 06/26/2016

    Is compatibile with Geeetech i3x ??

    • rita xiang | 06/26/2016

      yes, it is compatibile with all our printers except delta printers.

  • JORGE M LOPES | 06/03/2016

    Hi, Is this assembled extruder left or right ? long or short distance ? Thank you.

    • rita xiang | 06/07/2016

      left or right, it depends on you, you can see the release handle from the picture, if you want to make a dual extruder, make sure the release handle is opposite with your current one. If this picture is the same with yours, please leave a message when checking out that you need a opposite one. this one is for short distance feeding.

  • JORGE M LOPES | 06/02/2016

    Hi friends. I receive que product, but it came with some wires cut. Do you send it cut ? I ask it because I need to know who did the damage for clain the responsibility. Thank you

    • rita xiang | 06/03/2016

      please send a picture to myorder@geeetech.com

  • JORGE M LOPES | 05/24/2016

    could you tell me the HS code of this product ?

    • rita xiang | 05/25/2016

      Hello Jorge, the HS code of extruder is 8477900000.

  • JORGE M LOPES | 04/26/2016

    Hi , is the step motor nema 14 included ? tks

    • Quentin Qiu | 04/26/2016

      Hi, yes it is included.

  • Cesar Castillo | 03/12/2016

    Hi, Will this work as a replacement for the extruder on a Me Creator?

    • Quentin Qiu | 03/15/2016

      Hi, yes it can be used on Me Creator.

  • Charlie Lowell | 03/06/2016

    I purchased a Geeetech Prusa i3 ProC dual extruder printer a few months ago. Will this model replace an extruder on my printer? I damaged a heated end when threading in the nozzle. If it fits, I'd like to buy two.

    • Quentin Qiu | 03/07/2016

      Hello, MK8 can be used on i3 pro C. But MK8 has two types, one is LEFT and the other is RIGHT, so please confirm it with the sales when you purchase. Thank you.

      • Charlie Lowell | 03/07/2016

        I submitted a request regarding the order I placed yesterday to send me one of each rather that two of the same, which I presumed to be left (according to the images). Let's hope so!

        • Quentin Qiu | 03/08/2016

          Hello Charlie, you can confirm it with the sales if you are not sure. Thank you.

  • Chris Mauzy | 02/26/2016

    Hello, I received the Geeetech MK8 dual extruder tonight, looks great. I wired it up to replace the dual extruder in my Makerbot Replicator 2x. I powered it up and the extruders do not heat up. After some time I would get an error message to check connections. I triple checked the wiring and everything matches the way it was with the makerbot extruder. Any ideas? Please help me troubleshoot this, burned an entire night trying to get this fixed. Thanks

    • Quentin Qiu | 02/28/2016

      Hi Chris, you can contact this e-mail technical@geeetech.com for technical support. Thank you.

  • James Burke | 02/16/2016

    Is there a guide or manual for this? Mine is not feeding properly and I can't find any type of instructions or guidance for setting this up and adjusting it. My stepper just keeps clicking and not feeding which tells me it's probably too tight and needs adjusting. There is of course a threaded bolt sticking out of it but that doesn't seem to actually change anything.

    • Quentin Qiu | 02/23/2016

      Hi you can chat online with our technician through the orange chat window in the bottom right corner of your screen when you are on our homepage. Or you can contact this e-mail sherry.li@geeetech.cn for technical support. You can also go to our forum to refer to FAQ or post your problem. http://www.geeetech.com/forum/ Thank you

  • James Burke | 02/16/2016

    I purchased one of these but am having issues with it not feeding. It makes a clicking sound and the filament bobs up and down instead of feeding through. I can't find any guidance on properly adjusting it.

  • Pablo Romero | 02/14/2016

    I recently purchased a Prusa i3 X printer that comes with an MK8 extruder. The wiki docs claim that the MK8 has a 7mm drive gear, but, when I opened it up to inspect the gear, I saw that it was actually ~10.6mm gear, which I believe is the older gear on the MK7. Can someone please explain why this is?

    • Quentin Qiu | 02/23/2016

      Sorry for the late reply, for sales, delivery and replacement question please contact this e-mail sales@geeetech.com Please describe your question and provide your order number in your e-mail and my colleague in sales department will help you to solve your problem. Thank you

  • Donald Heihn | 05/13/2015

    I recently purchased an assembled MK 8 extruder for my Makerbot Replicator 2. When I tried to install the extruder, the unit was too tall and I had to modify the exiting mount for the side fan that blows air onto the part. It also came with a Thermistor installed, instead of a thermocouple, which is required by the Replicator 2. I replaced the thermistor. With everything assembled and connected then the stepper motor didn't work!. I found out that it was wired different then the Replicator 2. I could have used the cable that came with the MK8, but I would have had to splice the cable since the connector on the Replicator 2 was different. After re-wiring the stepper motor, by swapping two of the wires, the stepper motor worked fine. After all that, the new assembly is up and running and my Replicator 2 is working better than it ever has. It prints every time without uneven extrusions and clogging. I got it working, but on the downside a novice might have problems getting it to work. The quality of the unit is excellent, but installation is a bear.

  • bravo 007 | 03/31/2015

    is it compatible with rumba

  • bravo 007 | 03/31/2015

    we are from nuts and boltz India , recently we purchased this product, and i got to know this product is not compatible to rumba, because this mk8 is not having thermistor , it is having thermocouple, to decode the values we need to interface it ad595 or max6675, i m asking you once again , can u tell me it is thermistor or or thermocouple, please cofirm