Very good
Ender 3 Metal J-Head MK8 Hotend Kit for 3D Printers
Price range: $7.37 through $31.94
Pay now, in 4 interest-free payments of $1.84, or over 3–6 months
4 interest-free payments of $1.84
High-quality metal J-Head MK8 hotend kit featuring a 0.4mm nozzle, aluminum heat block, and integrated temperature thermistor for Ender and CR series 3D printers.
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Estimated Delivery Time3–7 business days
Metallic Precision for Reliable Printing
Crafted from premium aluminum, stainless steel, and brass, this hotend kit offers durable performance and consistent heating for your 3D printer. It features a 0.4mm nozzle delivering sharp detail and accurate extrusion, ideal for various printing tasks.
Designed for Easy Installation and Compatibility
This hotend connects via an external thread, making it simple to install on many popular 3D printers. Compatible with Ender 3 series, CR10 variants, and Ender 5 models, it fits seamlessly into your existing setup without hassle.
- External thread connection for straightforward installation
- Compatible with Ender 3, Ender 3 Pro, Ender 3 V2, CR10, CR10S, CR10S4, CR10S5, and Ender 5 printers
Efficient Heating and Temperature Regulation
Equipped with a 40W heating tube and sensitive thermistor, this hotend maintains precise temperatures between -40 to 260°C (operational range). The built-in Teflon-lined throat optimizes filament feeding and heat transfer for stable printing results.
- Integrated thermistor with white wire for temperature monitoring
- 40W heating tube with red wire, available in 12V or 24V versions
- Built-in Teflon throat pipe ensures smooth filament flow
Compact and Robust Components
The 20 x 20 x 10 mm aluminum block efficiently transfers heat to the nozzle while minimizing heat loss. The 30mm length throat pipe offers durability and thermal protection to the filament path.
- Aluminum heating block size: 20mm x 20mm x 10mm
- Throat pipe length: 30mm with Teflon lining for heat resistance
Key Specifications
- Material: Aluminum, stainless steel, brass
- Nozzle size: 0.4 mm
- Operating temperature: -40°C to +260°C (-40°F to +500°F)
- Thermistor & heater cable length: 1 meter
- Power: 40W heater, 12V or 24V versions available
What's in the box
- Metal J-Head MK8 Hotend Kit with nozzle, heating block, and throat pipe
- Temperature thermistor (white wire)
- 40W heating tube (red wire) with cable
Product FAQ
Frequently asked questions
01 What materials are used in this hotend kit?
The hotend kit is made from aluminum, stainless steel, and brass components.
02 What is the nozzle size of this hotend?
It has a 0.4mm diameter nozzle for precise filament extrusion.
03 Which 3D printers is this hotend compatible with?
It fits most Ender series like Ender 3, Ender 3 V2, Ender 3 Pro, and CR10 series including CR10, CR10S, CR10S4, CR10S5, as well as Ender 5 models.
04 What is the operating temperature range of this hotend?
The hotend operates safely between -40°C and +260°C (-40°F to +500°F).
05 Does this kit include the thermistor and heating element?
Yes, it includes a thermistor with a white wire and a 40W heating tube with a red wire suitable for 12V or 24V systems.
06 What is the length of the throat pipe in this hotend?
The throat pipe is 30mm long and built with a Teflon liner inside.
07 Is assembly required for this hotend kit?
No assembly is required; it is ready for installation with an external thread connection type.
08 What are the dimensions of the aluminum heating block?
The aluminum heating block measures 20mm x 20mm x 10mm.
09 Are there different versions of this hotend for voltage compatibility?
Yes, there are 12V and 24V versions to fit different printer models.
10 What is the cable length for the thermistor and heater?
Both the thermistor and heating element cables are 1 meter in length.
Discussion
4.9
Based on 51 reviews
100%
Complete print head for Ender3 v2. Works perfectly on my printer. The wires and cables are not exactly the same length as the original ones, but this does not pose a problem during installation. However, note that the inner diameter of the radiator for the PTFE tube passage is smaller than the original one... This means that the original blue PTFE tube does not fit, even when forced. (I had 2 new lengths in stock). To resolve the issue, I used a compatible PTFE tube, with an outer diameter slightly smaller than the original blue tube...
Looks cool. There's no way to check, I haven't even unpacked the printer yet. Delivery is fast, within a week.
I recommend
