---
product_id: 385967295
title: "Upgrade Kobra S1 Ceramic Hotend,0.4mm Hardened Steel Nozzle+Heating Block Integrated Structure Hot End Replacement with Silicone Sock Compatible with Anycubic Kobra S1/S1 Combo 3D Printers"
brand: "unitak3d"
price: "5595 som"
currency: KGS
in_stock: true
reviews_count: 13
category: "Uni Tak3 D"
url: https://www.desertcart.kg/products/385967295-upgrade-kobra-s1-ceramic-hotend-0-4mm-hardened-steel-nozzle
store_origin: KG
region: Kyrgyzstan
---

# 0.02mm nozzle precision 30% faster heat-up Integrated heatbreak+block Upgrade Kobra S1 Ceramic Hotend,0.4mm Hardened Steel Nozzle+Heating Block Integrated Structure Hot End Replacement with Silicone Sock Compatible with Anycubic Kobra S1/S1 Combo 3D Printers

**Brand:** unitak3d
**Price:** 5595 som
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your 3D prints with precision and speed — don’t get left behind!

## Quick Answers

- **What is this?** Upgrade Kobra S1 Ceramic Hotend,0.4mm Hardened Steel Nozzle+Heating Block Integrated Structure Hot End Replacement with Silicone Sock Compatible with Anycubic Kobra S1/S1 Combo 3D Printers by unitak3d
- **How much does it cost?** 5595 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/385967295-upgrade-kobra-s1-ceramic-hotend-0-4mm-hardened-steel-nozzle)

## Best For

- unitak3d enthusiasts

## Why This Product

- Trusted unitak3d brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Thermal Response:** Cut your preheat time by 30% and get printing faster than ever.
- • **Universal Compatibility:** Seamlessly fits Anycubic Kobra S1 & S1 Combo, supporting PLA, ABS, PETG, TPU & more.
- • **Plug & Play Installation:** Pre-installed components mean you’re back to high-quality printing in minutes.
- • **Integrated Stability Design:** Heatbreak and heating block fused for zero filament leaks and rock-solid reliability.
- • **Precision Hardened Steel Nozzle:** Ultra-smooth 0.4mm extrusion with sub-0.02mm tolerance for flawless prints.

## Overview

The Upgrade Kobra S1 Ceramic Hotend features an integrated heatbreak and heating block design made from brass and aluminum alloy, boosting thermal conductivity by 30% for faster preheating. Its 0.4mm hardened steel nozzle ensures ultra-precise extrusion with a diameter tolerance under 0.02mm, compatible with Anycubic Kobra S1 and S1 Combo printers. Pre-installed for easy swap-out, it supports a wide range of filaments including PLA, ABS, PETG, and TPU, delivering reliable, high-quality prints with minimal downtime.

## Description

desertcart.com: Upgrade Kobra S1 Ceramic Hotend,0.4mm Hardened Steel Nozzle+Heating Block Integrated Structure Hot End Replacement with Silicone Sock Compatible with Anycubic Kobra S1/S1 Combo 3D Printers : Industrial & Scientific

Review: Perfect Replacement — Works Like New! - This hotend fit my Kobra 3 perfectly and brought my printer back to life. Installation was straightforward, and it heated up quickly with accurate temperature control. Print quality is excellent again — smooth extrusion, no clogs, and consistent results. Highly recommend for anyone needing a reliable OEM replacement part. Great value and performance!
Review: Product comparable with latest firmware version 2.6.0 100% - Worked great!! Fit perfect Solved my clogging issue instantly. I wasn’t able to print ANYTHING before this product. Heats up super fast and cut my prep time down by more than half. fast overnight delivery at a amazing price! So happy i can finally print

## Features

- 【Integrated Structure】The integrated construction of the heatbreak and heating block makes the internal structure more stable, reducing filament leakage and detachment
- 【High Temperature Resistance】This kobra s1 hotend is made of brass heatbreak and aluminum alloy heating block, which is excellent in high temperature stability, and the thermal conductivity is improved by 30% compared with standard hotend, greatly reducing the preheating waiting time and enhancing printing efficiency
- 【High precision】 The 0.4mm nozzle is made of high-quality hardened steel with no burrs and a diameter tolerance under 0.02 mm for accurate extrusion, and improving printing quality
- 【Compatibility】This upgraded ceramic hotend is compatible with the Anycubic Kobra S1 and Kobra S1 Combo 3D printers. It supports the printing of PLA, ABS, PETG, TPU, and other filaments, meeting various printing needs
- 【Installation Precautions】Simply swap out your old hotend—heating element, thermistor, and nozzle are pre-installed. Before installation, check for loose parts caused by transit; after fitting, perform a quick nozzle PID calibration to ensure perfect prints

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0FCY8HRGW |
| Best Sellers Rank | #5,883 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #82 in 3D Printer Accessories |
| Date First Available | June 12, 2025 |
| Item Weight | 1.41 ounces |
| Manufacturer | UniTak3D |
| Package Dimensions | 3.94 x 2.64 x 1.34 inches |

## Product Details

- **Brand:** UniTak3D
- **Material:** Aluminum
- **Color:** Silver
- **Product Dimensions:** 1.02"D x 4.92"W x 4.33"H
- **Item Weight:** 60 Grams

## Images

![Upgrade Kobra S1 Ceramic Hotend,0.4mm Hardened Steel Nozzle+Heating Block Integrated Structure Hot End Replacement with Silicone Sock Compatible with Anycubic Kobra S1/S1 Combo 3D Printers - Image 1](https://m.media-amazon.com/images/I/51HAwpJRe1L.jpg)
![Upgrade Kobra S1 Ceramic Hotend,0.4mm Hardened Steel Nozzle+Heating Block Integrated Structure Hot End Replacement with Silicone Sock Compatible with Anycubic Kobra S1/S1 Combo 3D Printers - Image 2](https://m.media-amazon.com/images/I/61oeXqQpevL.jpg)
![Upgrade Kobra S1 Ceramic Hotend,0.4mm Hardened Steel Nozzle+Heating Block Integrated Structure Hot End Replacement with Silicone Sock Compatible with Anycubic Kobra S1/S1 Combo 3D Printers - Image 3](https://m.media-amazon.com/images/I/6184-uPlBhL.jpg)
![Upgrade Kobra S1 Ceramic Hotend,0.4mm Hardened Steel Nozzle+Heating Block Integrated Structure Hot End Replacement with Silicone Sock Compatible with Anycubic Kobra S1/S1 Combo 3D Printers - Image 4](https://m.media-amazon.com/images/I/71ds1Jd7UuL.jpg)
![Upgrade Kobra S1 Ceramic Hotend,0.4mm Hardened Steel Nozzle+Heating Block Integrated Structure Hot End Replacement with Silicone Sock Compatible with Anycubic Kobra S1/S1 Combo 3D Printers - Image 5](https://m.media-amazon.com/images/I/71iYbGaNs2L.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Do the threads come with any thread locker or anything? The oem one in my vyper looks like it came with stripped threads and some kind of epoxy in it.**
A: You must have a bad 3D Printer Hotend. I would get it replaced.

**Q: Which version fits the kobra max? also: does the connector fit?**
A: The Vyper one fits the Max.  I purchased one just in case and had to replace the original in my Max tonight and everything seems to be working fine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Replacement — Works Like New!
*by L***S on November 11, 2025*

This hotend fit my Kobra 3 perfectly and brought my printer back to life. Installation was straightforward, and it heated up quickly with accurate temperature control. Print quality is excellent again — smooth extrusion, no clogs, and consistent results. Highly recommend for anyone needing a reliable OEM replacement part. Great value and performance!

### ⭐⭐⭐⭐⭐ Product comparable with latest firmware version 2.6.0 100%
*by R***A on January 11, 2026*

Worked great!! Fit perfect Solved my clogging issue instantly. I wasn’t able to print ANYTHING before this product. Heats up super fast and cut my prep time down by more than half. fast overnight delivery at a amazing price! So happy i can finally print

### ⭐ Nowhere close to "original". Ruined my $35 cool plate...
*by K***D on July 9, 2025*

I removed the old hotend per the instructions on Anycubic's website. The install for this was easy and it seemed to match the dimensions and look of the original with no visible differences, at first. Once I installed it, I did a PID calibration on the printer as recommended by the manufacturer and fired up my first test print of a temp tower. After the first initial layer, the nozzle immediately began to glob out filament and make a huge mess of the next couple of layers until I manually stopped the print. I took it apart and removed the hotend and cleaned a ton of filament that was jammed in the nozzle. I reinstalled the hotend but what I didn't notice at the time is that the PTFE guide tube that had pushed itself out of the neck about 2mm. When I went to reinstall it, I did just as the first time and pushed up until it was flush and locked the lever back in position. It seemed to have tension when pulling down so I put things back together and fired up a second print. Same thing, temp tower. This time, it laid down the first layer nearly perfectly so I walked out the room. As I was walking away, I heard a loud grinding noise so I ran back in to see what was going on. The gap in the PTFE tube caused the neck to not sit flush and it was not fully locked in position so it had dropped down after the first layer and been dragged along my $35 build plate and dug huge holes and trails in it. I stopped the print, heated up the print head and removed it again and as I pulled it out of the print head, this time the PTFE guide tube fell completely out of the hotend and onto the floor along with a small piece of filament that was left inside. Now not only am I out a functional hotend but I lost a $35 build plate. I try not to leave bad reviews unless I have to and the second install was a bit of user error as I should have noticed, at the point, that the PTFE guide tube was not properly glued into the unit like the factory ones are but it certainly shouldn't fall out.

## Frequently Bought Together

- ANYCUBIC Vyper/Kobra Max/Kobra Plus 3D Printer Hotend Replacement Volcano V5 J-Head Quality Brass Nozzle 24V40W Ceramic Heating Cartridge Element Supports High Speed Printing
- 15PCS Nozzles Kit for Anycubic Vyper, 3D Printer 7PCS 0.4mm Brass Nozzles and 2PCS 0.2mm, 0.6mm, 0.8mm, 1.0mm Brass Nozzles Kit for Anycubic Vyper, Kobra Plus, Kobra Max
- ANYCUBIC PLA 3D Printer Filament, RFID 3D Printing PLA Filament 1.75mm Dimensional Accuracy +/- 0.02mm, 1KG Spool (2.2 lbs), Texture Grey

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**Shop now:** [https://www.desertcart.kg/products/385967295-upgrade-kobra-s1-ceramic-hotend-0-4mm-hardened-steel-nozzle](https://www.desertcart.kg/products/385967295-upgrade-kobra-s1-ceramic-hotend-0-4mm-hardened-steel-nozzle)

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*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-03-04*