Before purchasing, please compare the model numbers below to make sure that this exact heater is installed in your vehicle!

New, original packaged Eberspächer auxiliary heater / replacement heater for VW T4

Hydronic D3WZ: 25 2121 05 corresponds to VW number 7D0 815 071

Diesel 12V; 22W

We always deliver devices from current production. Returning the old part is NOT necessary.

To be used only as a replacement heater for factory-installed (defective) HYDRONIC D3WZ with the above model number.

Not for subsequent installation. For subsequent installation, please use a universal auxiliary heater!

Scope of delivery: - Heater D3WZ: 25 2121 05 0000

- as shown in the photo

- without metering pump - the fuel pump is an original manufacturer part and can be purchased there!

The warranty period begins with the installation of the heater. Please ensure that you can provide proof of the installation date (workshop invoice, acceptance certificate, etc.).