Junkers WR 11 Liter Water Heater Coil (No Thread) 87054063840 / 8755006007
Coil for Junkers WR 11 Liter Water Heater
Coil – Heating Body – Heat Exchanger Tank. Non-threaded
Suitable for Junkers WR11 and WRD11 water heaters
Copper coil used in Junkers 11-liter flow rate models . Shipped in a perfectly packaged box to ensure it arrives in perfect condition. The arms of this heater model are not threaded; they are secured with a press-fit O-ring and pin.
To thread it, you need to buy this fitting
The heating coil should be replaced when it is damaged or broken internally. Sometimes, if the break is in the external arms, it can be welded.
We recommend soldering it with copper and not tin, due to the hardness of the latter.
A good trick to extend the life of the heat exchanger against freezing is to turn off the water at the main valve at night (since that is when the temperature drops the most) and open the hot water tap to try to empty the tank a little.
Thus, the water that remains inside and may freeze is not enough to break the Junkers heater coil
Visit the compatible models tab to make sure it fits your heater model.
Junkers Heater Coil without thread











Pedro Mendes –
Replace the serpentim 87054063840 with the Junkers WTD11.
Javi Henrique –
I replaced the 11L coil in a Junkers WRD11
Alvite –
Great! The next day, it was assembled and working