--- product_id: 220458805 title: "Bigtreetech Upgrade Dual Gear Extruder, Double Gear MK8 Extruder 3D Printer Dual Driver Stock Feeder All Metal 1.75mm Filament Extruder Kit for CR-10S Pro/CR-10/ Ender 3 V2/Ender 3/Ender 3 Pro Series" price: "$38.63" currency: USD in_stock: true reviews_count: 8 url: https://www.desertcart.us/products/220458805-bigtreetech-upgrade-dual-gear-extruder-double-gear-mk8-extruder-3d store_origin: US region: United States of America --- # Adjustable Tension All-Metal Build Dual Gear Power Bigtreetech Upgrade Dual Gear Extruder, Double Gear MK8 Extruder 3D Printer Dual Driver Stock Feeder All Metal 1.75mm Filament Extruder Kit for CR-10S Pro/CR-10/ Ender 3 V2/Ender 3/Ender 3 Pro Series **Price:** $38.63 **Availability:** βœ… In Stock ## Summary > πŸš€ Elevate Your 3D Printing Game! ## Quick Answers - **What is this?** Bigtreetech Upgrade Dual Gear Extruder, Double Gear MK8 Extruder 3D Printer Dual Driver Stock Feeder All Metal 1.75mm Filament Extruder Kit for CR-10S Pro/CR-10/ Ender 3 V2/Ender 3/Ender 3 Pro Series - **How much does it cost?** $38.63 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/220458805-bigtreetech-upgrade-dual-gear-extruder-double-gear-mk8-extruder-3d) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Built to Last:** Crafted from high-quality aluminum alloy for unmatched durability and stability. - β€’ **Precision Engineering:** Enjoy smoother filament feeding with a dual gear design that locks in performance. - β€’ **Unleash Your Creativity:** Transform your 3D printing experience with enhanced feeding intensity and precision. - β€’ **Versatile Compatibility:** Perfectly fits a range of popular 3D printers, ensuring seamless upgrades. - β€’ **User-Friendly Adjustments:** Easily fine-tune extrusion tension for optimal results with various filament types. ## Overview The Bigtreetech Upgrade Dual Gear Extruder is a high-performance 3D printer extruder kit designed for compatibility with popular models like CR-10 and Ender series. Featuring a robust all-metal construction and adjustable spring tension, this extruder ensures reliable filament feeding and improved print quality. Ideal for various filament types, it’s the perfect upgrade for any serious 3D printing enthusiast. ## Description Product description All metal aluminum alloy Direct drive extruder High quality dual gear extrusion Specification Name: Double Gear MK8 Extruder Item type: CR-10S PRO Extruder Material:Aluminum alloy Color:Red Suitable: For CR-10S PRO, 3. Ender-3, Ender 3pro, Ender 5, Tornado Package Included: 1 x CR-10 Upgraded dual gear extruder kit Aluminum alloy extruder The high-quality aluminum alloy material adopts the new imported aviation aluminum material, which is processed by CNC imported from Japan, and sandblasted to the surface oxidation to ensure the structure is strong and durable Double gear extruder Double gear and double pneumatic joint extrusion structure, high extrusion force, enhanced feeding strength, ensure smooth feeding, better pressure to push the filament into the printer, not easy to lose steps. Adjustable rigid spring Adjusting the tension of the rigid spring helps to solve the problem of insufficient extrusion. The metal chuck cooperates with the stress spring to generate a super force, and the wire is pressed smoothly and easily. The double extrusion structure makes it easy to feed the wire and will not get stuck in the tube. About how to install Advantage This MK-8 dual gear extruder is made by quality all-metal aluminum alloy, with long life use time. Direct drive extruder Metal clamp match to the stress spring produce super force press the filament smoothly and easily.Double extrusion mechanism let the filament feeding become easy and relax without block in the tube. The original aluminum alloy driver is supplied for CR-10S PRO. It can also be installed for Ender3, Ender 3 v2,Ender 3pro, Ender 5, Tornado .etc.Stable and durable. All-metal aluminum alloy, diy aluminum block, you need to be assembled it by yourself Notice This is right hand extruder Wrong installation direction will lead to impact on the Z-axis screw If the printer has replaced the motor halfway, the hole height may be inconsistent after installation. If you have any questions about installation, there are relevant installation videos online, or you can ask our technicians at any time This genuine extruder is only available at Octobigtree , we are here for you Review: Absolutely kills it. - To get it out of the way first, yes, as everyone else has mentioned... No instructions. However, if you pay attention when you are removing your old extruder, this is a straightforward process. I have been trying in vain to get a large nozzle (1.0 mm) to work on my ender 3 pro for rapid drafting. The stock extruder laughed in my face and skipped like a record when I tried to print with the 1 mm. I installed this extruder, not really expecting that much of a difference, but I had tried every other suggestion for fixing extruder skipping. Slowed the print down, adjusted up my zed offset, changed stepper motors, checked stepper voltage, all that crap. Long story short, I installed this guy and have run a few tests. I started with a layer height of .6 at a print speed of 30. No problemo. I was surprised. So I jumped it up to the .8, same speed. No issues. I went bananas and jumped it up as far as I could possibly need it to go: 1 mm layer height at 50 mm/s (my usual speed for PETG). I'll note here that I ran it at a 1.1 layer width as well. Holy crap, it ran it no problem. You can watch your spool as the life drains out of it at that height and speed, but it does an amazing job now. Just from the extruder change. Buy it. Buy it now. BTW, you can do a layer height the same as the nozzle, but you need to know how to set your slicer. Most people recommend no more than 75 - 80 percent, and that's perfect if you don't want to muck around too much. Review: No Longer fits Ender v2 - With the latest Ender 3 v2 the motor has changed. The shaft is no longer keyed and the factory feed roller is pressed onto the shaft. As a result the new set screw is too high to catch the shaft. Also you need to get the old pressed roller off before you can even see this issue. The result is that this will NOT work on the newer Ender 3. If you look down at your extruder and the motor shaft does not stick up above the roller gear then this will not work. I always wondered how you connect the finger wheel filament feeders you find on Thingiverse for the Ender 3. Now I know with their latest model none of those will work either. Hmm...I guess I can kind of blame Creality for this but the vendor of this extruder needs to be current as well. If they made the lower part of the gear longer and put the set screw down there then it would work but you still have to get the pressed roller off the motor. Now that sounds all negative and if you have that model I guess it is - however, their customer service is absolutely great. They reached out to me immediately to clarify and resolve the issue. Although in the end it has been turned over to their engineers for a permanent solution, they gave me options and refunded super quick. I will definitely buy from them again. ## Features - Upgraded Dual Extruder: Dual gears and dual pneumatic combined extrusion structure, large extrusion force, enhanced feeding intensity, ensuring smooth feeding. The double gear rotation design locks the filament, which is beneficial to improve printing quality and reduce filament slipping, high-speed extrusion or retraction, better pressure to push the filament into the printer, less easy to lose steps, faster printing speed - Compatibility: Double gear mk8 extruder, perfect replacement for 3D printer CR-10/ CR-10S/ CR-10S Pro/ Ender 3 (initial version)/Ender 3 v2/Ender 3 pro/Ender 5/Tornado, etc. 1.75 mm filament (Set only for 3D printers with motor shafts exceeding 20mm, please measure the shaft length before placing an order.) - Stable and Durable: All metal aluminum alloy, high quality double gear extrusion, compared with ordinary plastic drive, this high aluminum metal filament extruder is stable and durable. The idler gear has been upgraded with a brass washer added between the stainless steel gear and the aluminum housing, so the gear does not collide seriously with the housing, which helps reduce stock extruder wear - Adjustable Spring: The tension of the extrusion spring can be adjusted by tightening the screw, which greatly improves printing accuracy and paper feeding problems. Strong extrusion end spring enhances feeding strength and ensures stable pushing of filaments into the hot end of the printer. Suitable for most types of filament, such as ABS, PLA, TPU, PTEG etc - Imported Materials: The 3d printer dual extruder material is made of brand new imported aviation aluminum material and processed by CNC imported from Japan. The kit does not include the stepper motor, motor bracket and instructions, we need to make them ourselves. If you need some installation help, there are video introductions online, and you can seek our technical help at any time ## Technical Specifications | Specification | Value | |---------------|-------| | Customer Reviews | 4.2 out of 5 stars 695 Reviews | ## Images ![Bigtreetech Upgrade Dual Gear Extruder, Double Gear MK8 Extruder 3D Printer Dual Driver Stock Feeder All Metal 1.75mm Filament Extruder Kit for CR-10S Pro/CR-10/ Ender 3 V2/Ender 3/Ender 3 Pro Series - Image 1](https://m.media-amazon.com/images/I/71+z2px2J6L.jpg) ![Bigtreetech Upgrade Dual Gear Extruder, Double Gear MK8 Extruder 3D Printer Dual Driver Stock Feeder All Metal 1.75mm Filament Extruder Kit for CR-10S Pro/CR-10/ Ender 3 V2/Ender 3/Ender 3 Pro Series - Image 2](https://m.media-amazon.com/images/I/71oONsO5fwL.jpg) ![Bigtreetech Upgrade Dual Gear Extruder, Double Gear MK8 Extruder 3D Printer Dual Driver Stock Feeder All Metal 1.75mm Filament Extruder Kit for CR-10S Pro/CR-10/ Ender 3 V2/Ender 3/Ender 3 Pro Series - Image 3](https://m.media-amazon.com/images/I/61gh-65WlbL.jpg) ![Bigtreetech Upgrade Dual Gear Extruder, Double Gear MK8 Extruder 3D Printer Dual Driver Stock Feeder All Metal 1.75mm Filament Extruder Kit for CR-10S Pro/CR-10/ Ender 3 V2/Ender 3/Ender 3 Pro Series - Image 4](https://m.media-amazon.com/images/I/617TR4qxOML.jpg) ![Bigtreetech Upgrade Dual Gear Extruder, Double Gear MK8 Extruder 3D Printer Dual Driver Stock Feeder All Metal 1.75mm Filament Extruder Kit for CR-10S Pro/CR-10/ Ender 3 V2/Ender 3/Ender 3 Pro Series - Image 5](https://m.media-amazon.com/images/I/618-n9-+AzL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Does this work with newer Ender 3 Pros?** A: Yes...and no. You will not be able to attach the gear to the 42-40 motors that don't have the longer center shaft. These use a 14mm (from the raised part of the motor, the circle) shaft and it is not long enough. It will not work without changing the extruder motor. Also, the input fitting will not clear the Ender 3 Pro Z rod...so if that's critical for your install, I'd look elsewhere. **Q: Does this fit on a Creality-6SE printer?** A: yes fits on mine, but i needed to print off a riser pad for the filament sensor. the one i used is called "Creality CR-6 SE filament sensor mount riser with cable holder for dual gear extruder" on thingiverse. but just a quick note, YOU WILL NEED 25-30 MM M3 screws. i picked up 2 at a hardware store but you can also buy them off here on amazon. **Q: Could this work with the longer lk4 pro 3d printer?** A: Thank you for your inquiry. This dual pneumatic extruder can be used on longer lk4 pro 3d printer. **Q: Is there a a version of this that comes with a motor?** A: There is a version that comes with the extruder completely build the carriage assembly and a new hand but I can't remember who makes it it's literally a plug-and-play ## Customer Reviews ### ⭐⭐⭐⭐⭐ Absolutely kills it. *by D***. on February 22, 2021* To get it out of the way first, yes, as everyone else has mentioned... No instructions. However, if you pay attention when you are removing your old extruder, this is a straightforward process. I have been trying in vain to get a large nozzle (1.0 mm) to work on my ender 3 pro for rapid drafting. The stock extruder laughed in my face and skipped like a record when I tried to print with the 1 mm. I installed this extruder, not really expecting that much of a difference, but I had tried every other suggestion for fixing extruder skipping. Slowed the print down, adjusted up my zed offset, changed stepper motors, checked stepper voltage, all that crap. Long story short, I installed this guy and have run a few tests. I started with a layer height of .6 at a print speed of 30. No problemo. I was surprised. So I jumped it up to the .8, same speed. No issues. I went bananas and jumped it up as far as I could possibly need it to go: 1 mm layer height at 50 mm/s (my usual speed for PETG). I'll note here that I ran it at a 1.1 layer width as well. Holy crap, it ran it no problem. You can watch your spool as the life drains out of it at that height and speed, but it does an amazing job now. Just from the extruder change. Buy it. Buy it now. BTW, you can do a layer height the same as the nozzle, but you need to know how to set your slicer. Most people recommend no more than 75 - 80 percent, and that's perfect if you don't want to muck around too much. ### ⭐⭐⭐⭐⭐ No Longer fits Ender v2 *by B***R on March 8, 2021* With the latest Ender 3 v2 the motor has changed. The shaft is no longer keyed and the factory feed roller is pressed onto the shaft. As a result the new set screw is too high to catch the shaft. Also you need to get the old pressed roller off before you can even see this issue. The result is that this will NOT work on the newer Ender 3. If you look down at your extruder and the motor shaft does not stick up above the roller gear then this will not work. I always wondered how you connect the finger wheel filament feeders you find on Thingiverse for the Ender 3. Now I know with their latest model none of those will work either. Hmm...I guess I can kind of blame Creality for this but the vendor of this extruder needs to be current as well. If they made the lower part of the gear longer and put the set screw down there then it would work but you still have to get the pressed roller off the motor. Now that sounds all negative and if you have that model I guess it is - however, their customer service is absolutely great. They reached out to me immediately to clarify and resolve the issue. Although in the end it has been turned over to their engineers for a permanent solution, they gave me options and refunded super quick. I will definitely buy from them again. ### ⭐⭐⭐⭐ Overall, a great upgrade! Well worth the $$ *by H***. on November 29, 2022* Ordered this for my Ender 3 pro as the teeth were worn and no longer feeding the filament consistently. I have installed similar hardware on other printers, so this one wasn't a big deal, but for someone new to this, the lack of decent instructions may be a bit frustrating. The only other con for me is the inability to add an extruder knob due to the design. Not a deal breaker, but maybe future versions could allow for this. Now for the good: This thing is well built and works like a dream! Anyone that has dealt with the old style single gear extruders know how aggravating feeding new filament can be! Sometimes it seems almost impossible to get it aligned and feeding properly. No such issue with this one. Feeds right through, and no slipping or jumping. I'm also not seeing the filament dust accumulate around the drive gears like in others. Would definitely purchase again! ## Frequently Bought Together - Bigtreetech Upgrade Dual Gear Extruder, Double Gear MK8 Extruder 3D Printer Dual Driver Stock Feeder All Metal 1.75mm Filament Extruder Kit for CR-10S Pro/CR-10/ Ender 3 V2/Ender 3/Ender 3 Pro Series - BIQU Panda Jet Head Cooling Fan Duct for Bambu-Lab P1P/P1S/X1C/X1E 3D Printers Compatible with Stock Hotend Panda Revo/Flow - BIQU Extruder Pulley 36Teeth Bore 5mm Stainless Steel Drive Gear for 1.75mm & 3mm 3D Printer Filament (Pack of 5pcs) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/220458805-bigtreetech-upgrade-dual-gear-extruder-double-gear-mk8-extruder-3d](https://www.desertcart.us/products/220458805-bigtreetech-upgrade-dual-gear-extruder-double-gear-mk8-extruder-3d) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-20*