


Mimaki · Other Parts · Part No. M018621
Original Mimaki UJF-3042MkII / UJF-6042MkII Hot Water Heater Assy – M018621
Genuine Mimaki M018621 hot water heater assembly for UJF-3042MkII / MkII e and UJF-6042MkII / MkII e UV flatbed printers. Replace it when heating errors or unstable ink temperature occur.
- 100% genuine Mimaki part
- Brand new
- Worldwide shipping by DHL / FedEx
Price · USD
Per piece
$307
- M018621part number
- 4compatible models
- Newcondition
- Mimakibrand
Mimaki M018621 Overview
The M018621 hot water heater assy is the heating unit assembly of the Mimaki UJF-3042MkII, UJF-3042MkII e, UJF-6042MkII and UJF-6042MkII e UV flatbed printers. It heats the circulating water used to bring the ink and printheads to the correct working temperature, which keeps the ink viscosity stable for consistent jetting. This is a genuine, original Mimaki part – not a copy or compatible replacement.
UV inks are sensitive to temperature. If the heater fails or heats unevenly, the printer may show heater or temperature errors, take a long time to become ready, or print with unstable droplets, causing banding, missing nozzles or colour shifts, especially in a cold room. Heater elements and their sensors can burn out or become unreliable after years of use. Replacing the complete original assembly restores proper temperature control.
Key features
- Genuine Mimaki heater assembly, part number M018621
- Heats the circulating water for ink temperature control
- Fixes heater and temperature errors
- Supplied as a complete assembly, ready to install
- Fits UJF-3042MkII / MkII e and UJF-6042MkII / MkII e
Compatible with: Mimaki UJF-3042MkII, UJF-3042MkII e, UJF-6042MkII, UJF-6042MkII e
Please check the part number on your existing part, or contact us with your machine model and serial number if you are not sure about compatibility.
Specifications
| Item | Specification |
|---|---|
| Brand | Mimaki |
| Authenticity | Genuine original Mimaki part |
| Part Number | M018621 |
| Part Name | Hot Water Heater Assy |
| Compatible Models | UJF-3042MkII, UJF-3042MkII e, UJF-6042MkII, UJF-6042MkII e |
| Condition | New |
Not sure this is the right part for your machine?
Send Ewan your machine model and serial number, or a photo of the old part and its label, on WhatsApp – he’ll confirm compatibility and reply with a quote, usually within a few hours.





