*Flexion HT Extruder Kit - Single i3 (5121SKU002HT)


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High temperature Flexion 3D printer extruder.  Sold as a bundle with the standard Flexion kit. Allows printing at temperatures up to 290°C to allow Nylon and Polycarbonate. Improved PLA performance. Fast hotend swapping. Works with all the same printers as the standard Flexion kits.

*Does not include stepper motor

High-temp bundle for single extruder kits. Includes entire standard Flexion Extruder kit plus a separate high-temp hotend (barrel, heater block, nozzle). Nozzles include are: 0.3, 0.4, 0.5, and 0.8mm. This works with the Wanhao Duplicator i3 and similar printers. You will no longer need your stock heatsink with this assembly.

High-temperature 3D printer extruder upgrade or retrofit kit for common 3D printers. This upgrade allows printing of materials at up to 290°C. The barrel is designed in collaboration with Micro Swiss. The finned mounting block has several advantages:

  • Better thermal performance
  • Visibility of extruder (you can remove your stock heatsink – but continue to use the fan)
  • Easy removal of the hotend without disassembling the motor and extruder (tool access between fan blades)



This kit requires you to disassemble your printer’s extruder and reinstall this upgrade. Instructions will be posted soon.

Note: the HT mounting block does NOT include an M6 mounting hole, necessary for HICTOP and some other eBay kit printers.

Works With:

iFlashforge Creator, Monoprice Dual, Wanhao 4S, Powerspec Ultra, and many others. See the Flexion support page for information on retrofitting to your printer.

Buy a Flexion Extruder Kit from #Spool3D for your 3D printer in Canada without the surprise cost of the exchange rate!

Manufacturer Part Number: 5121SKU002HT


5 out of 5 (based on 2 ratings)
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flexion extruder HT

after reading comments about this being supposedly the ''best'' extruder out there I decided to get one and see if it was worth it.... all I can say is this isnt not by anyway a bad purchase, never did i think it would make such a HUGE difference, this is more then the best extruder system out there, the print quality is sooo much better, the ease of use is amazing, a must get for any printer out on the market. only ''gripe'' if you dont want to ever have to touch it, get the locking screw kit for the adjustable arm setting, tends to back out with time, nothing major, just turn it back to its position . on a 1 to 10 scale, this is a 10 in my opinion.
Posted by Eric Vadeboncoeur, July 23, 2019

the good investment to improve my printing

very pleased with the performance more than met my expectation
Posted by Dan Sigmundson, November 22, 2018