Creality K1/K1 Max/K1C Extruder Without Motor, Upgrade K1 Max Extrusion Kit High Speed Direct Drive Extruder Dual Gear Feeding Extrusion Mechanism Kit for Ender 3 V3/Ender 3 V3 Plus/K1 SE

I recently upgraded to the Creality K1C Extruder Kit (Version 3.0) for my Creality K1, and it’s been a noticeable improvement over the stock setup, especially for high-speed printing. This direct-drive, dual-gear extruder, paired with a 40N stepper motor, delivers smooth and precise filament feeding, handling PLA, PETG, TPU, and even abrasive carbon fiber filaments with ease. The all-metal design, including a quick-swap tri-metal nozzle and hardened steel gears, feels robust and tackles high-temperature (up to 300°C) and abrasive materials without clogging or wear—perfect for my carbon fiber prints. Installation was straightforward, taking about 15 minutes with three screws and a clear YouTube tutorial from CHEP Filament Friday, though the glued JST connectors were a bit annoying to disconnect without a heat gun. I’ve printed at 300mm/s with no skipping or under-extrusion, and the compact Hummingbird design reduces motion inertia, making it ideal for the K1 series’ CoreXY speed. The extruder’s spring-loaded mechanism ensures consistent pressure, and I’ve had zero jams in a month of heavy use. That said, earlier K1 and K1 Max extruders had issues like filament grinding or under-extrusion, especially with the first-generation aluminum lock knob (shiny/chrome finish). Creality addressed these with the Version 3.0 upgrade, which I have, but if you’re on an older K1 model, check your extruder version before printing complex jobs. The back-mounted spool holder and sharp PTFE tube bend can still complicate filament loading, so I printed a side-mounted spool holder to ease the process. Some users report occasional blockages with high-viscosity filaments at 400mm/s+, but slowing to 300mm/s or using Hyper PLA resolves this. Overall, the K1C extruder’s reliability, compatibility with the K1, K1 Max, and K1C, and support for diverse filaments make it a worthy upgrade for fast, high-quality prints, though minor tweaks like better filament path design would perfect it.

I’ve had two Creality K1 printers, and after using the K1 Upgraded Extruder on both, I can confidently say it’s a solid improvement over the stock setup. If you’re running into inconsistent extrusion, filament grinding, or just want better performance, this upgrade is worth considering. Installation is pretty straightforward—it’s essentially a drop-in replacement for the original extruder, and Creality includes everything you need. Once installed, the difference is noticeable. Filament grip is stronger, reducing under-extrusion issues, and retractions feel snappier, which helps cut down on stringing. It also handles flexibles and abrasive filaments better than the stock unit, making the K1 more versatile. One of the best things about this upgrade is its increased durability. The stock extruder on the K1 works fine for standard filaments, but it tends to wear out quicker, especially with higher-speed printing. This upgraded version holds up better over time, giving you more consistent prints without needing constant adjustments. If you’re pushing your K1 to its limits or just want a more reliable, hassle-free extruder, this is a must-have upgrade. I’ve got them on both of my K1s, and they’ve made a noticeable difference in print quality and reliability. Definitely worth the upgrade!

Not a single problem after install.

Loving this extruder. No jams. Handles carbon fiber and tough filament with ease.

It works great. Easy to assemble and install.

Godawful product, printer and company, talking directly to Creality specifically, just to be super clear, and the K1C 3D printer. There is an inordinate amount of time spent diagnosing and fixing this model, since first purchasing around 1 year ago. Most of the issues revolve around the extruder and associated gear box. This NEW GEARBOX lasted less than 1 month, didn't even get a full 1kg of filament through it before the gears stripped out catastrophically at the interface with the motor ... you know, plastic gears + metal gears, super well thought out by the Company's planned obsolescence team, they seem to be the only ones doing their job. I was expecting at least a little more life out of the new unit, like one full reel would have been nice. This was a replacement for the original gear box that came with the purchase, like-for-like, where the original lasted around 1 year, approximately 5-7kg of filament in total. So, to compare, they both suck, the the "new" replacement sucks about 10x harder. Add in the song and dance associated with disassembling the extruder, fan shroud, and delicately removing the power interconnections each and every time you need to diagnose / replace / repair ... this can turn into a multi-step repeating nightmare that burns your time in the most frustrating way imaginable. Furthermore, I had to completely replace the mother board on the unit after it "bricked", that is, stopped working completely, after the approximate ~1year of operational use ... the new motherboard is holding up (so far). Topping it all off is a horrible slicing UI (prone to crashing regularly), horrible Company support / technical guidance (most everything I've found useful comes from other frustrated users who have found work-arounds on all of these issues. In conclusion to this rant, sorry for the negativity, but if you made it this far ... bottom line ... This is a garbage product, made by a garbage company and I will never buy anything by Creality ever again (outside of trying to get this unit up and running again, it prints good if you work around all the crapola that is put in your way). Also to quality my sassiness, I'm an electrical engineer with around 20 years of experience regularly constructing, deconstructing, programming, and modifying small electronic components and associated motors, controllers, and logic... I've tried and succeeded in making things work, over, and over, and over, and over, and over ... super disappointed

It worked like it should. Problem fixed

Perfect fit for my V3 plus. Easy install. Great quality for the price.

Ya esta instalado y funcionando al 100

Be Careful; there is a poorly explained Caution for this product version; and is somewhat misleading. This Extruder is intended to be used NEWER versions of the K1 MAX, with the Acorn HotEnd. Using the Old unit's cover suggestion eliminates some of the important benefits of upgrading to the new Extrude. It did not properly match my 2 year old K1 Max's needs. The original K1 MAX design's Blue PTFE tube heat-break does not fit into this newer Extruders. I had to 'drill out' access way into the product for my Blue Tube to fit in it; since I did not wish to upgrade my HotEnd, as well. This is not an idea solution path to upgraded features.

ちゃんと交換をして、動いています。

Fit like a glove no issues but it squeaks so idk what to do

The motor connection is very weak. Few weeks after getting it, a small incident broke the wire. There's no connector so there is no way to fix it. Ordered another generic motor. The extruder also has a very bad standing for many of the pla I use. The material break in easily and I had breaks often. Changed to a full metal extruder, never jammed since. So basically, good enough for the price, but I would recommend going for higher end.