Creality Official Upgrade K1 Series Extruder, 50N Strong Extrusion Force & Dual Gear Design Provide Smooth and Precise Feeding, Compatible with Creality K1/ K1 Max/ K1C/ Ender 3 V3/ Ender 3 V3 Plus

Work perfectly. Pulled old one out motor and all installed new one no issues. Lot easier to place just that then to replace just the extruder. Ordering two more just in case

Worked perfect on my K1C

Review: Creality K1 Extruder Upgrade – A Must-Have EnhancementUpgrading the Creality K1 with this new extruder has been a transformative experience for my 3D printing workflow. Right out of the box, it was clear that this extruder was engineered with precision and reliability in mind.PerformanceThe upgrade immediately resolved the occasional inconsistencies I faced with the stock extruder. With better filament grip and smoother feed control, prints now come out with sharper details and fewer layer issues. Whether working with PLA, PETG, or even flexible filaments like TPU, this extruder handled them all with ease.Ease of InstallationInstallation was straightforward, taking about 20-30 minutes. The instructions were clear, and the components fit perfectly with the Creality K1’s design, making the upgrade process hassle-free.ResultsWhat stands out most is the improvement in print quality. Layer adhesion is noticeably better, and the overall precision has increased, even on more intricate designs. The reduced clogging and under-extrusion mean I can leave longer prints unattended with confidence.Why I Love ItThis extruder upgrade has breathed new life into my Creality K1. It’s not just an enhancement—it feels like a complete performance overhaul. For someone who focuses on intricate, customer-designed devices and articulated miniatures, the difference is night and day. My print success rate has significantly improved, and the time I save on reprints alone makes this investment worth every penny.VerdictIf you’re serious about getting the best out of your Creality K1, this extruder upgrade is a no-brainer. It’s a solid, reliable addition that turns a good printer into an exceptional one. Highly recommended!

Exactly what it is and works great.

This is not compatible with my K1 Max unless you modify the machine. It doesn't say this anywhere on the listing.The little plastic tube that sits between this piece and the nozzle DOES NOT FIT into this new "upgrade".Based on other reviews I'm seeing that if your machine is older than the last few years then it won't fit the k1 max.I would have given 4 stars for this issue if they had mentioned the age of the max that didn't fit... but they don't mention it anywhere.

I am no beginner hack. Hobby 3D printing 10 years. Using 15 printers. My Creality K1C began seriously under extruding. Tried all the usual fixes. A Sherlock Holmes quote, "When all other clues have been eliminated, what's left must be the problem". New extruder not hard to change. Now printing better than I remember brand new. Just do it.

My initial release K1 had all of the typical issues with the hotend and extruder that you could find everywhere online.I think the primary detractor to this extruder design is the PTFE tube that comes out of the bottom of it and butts up to the hotend. I think more of the extrusion issues are related to the PTFE tube not being fully aligned to the hotend.I paired this new style extruder with the Unicorn hotend found on the K1C and I couldn't be happier. This allowed me to get rid of that PTFE tube from the bottom of extruder and run the hotend directly into it. This pairing immediately solved my under extrusion issues and my K1 now prints beautifully.

the extruder that came with my creality k1 printer worked right for the first couple of prints and really went downhill from there. they finally fixed the problem, and this was the solution. it makes the printer work like it was supposed to out of the box. since I installed it and changed the stock hot end that was also a problem they should have fixed before shipping. creality really dropped the ball here but at least they are coming up with fixes that work