Please check the Eberspächer number or VW number on your old device before purchasing. These must be identical to ensure compatibility.

You are purchasing a new, originally packaged Eberspächer auxiliary heater / replacement heater for your Volkswagen T4.

Hydronic D4WS: 25 2123 05

VW part number: 7D0 819 008 A

Diesel 12V; 44W

To be used only as a replacement heater for factory-installed (defective) auxiliary heater D4WS with the above model number.

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

Scope of delivery:

- Heater D4WS: 25 2123

- as shown in the photo - without kit, without water pump. These are original VW parts and can be purchased from VW!

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.).

NOTE: this heater D4WS 25 2123 (4KW) can also be used as a replacement for the D5WS 25 2164 (5KW). The connections are identical.