ALDE 12V Circulation Pump with Plug
This genuine Alde 12V circulation pump is an essential component for maintaining smooth and reliable operation of your Alde hydronic heating system. Its purpose is to circulate the glycol‑based heating fluid throughout the system, ensuring consistent warmth and stable performance in all conditions.
Unlike older inline pumps, this model is designed to sit inside the Alde expansion tank, which significantly reduces noise and vibration. The in‑tank design also improves efficiency and helps maintain a steady flow rate throughout the heating circuit. It is a direct replacement for the original Alde pump supplied with many Compact 3000 and 3010 installations.
Key Features
- Genuine Alde replacement part
- 12V circulation pump with factory‑fitted plug
- Low power consumption: 0.2A
- Quiet, efficient in‑tank operation
- Suitable for 22mm Alde heating circuits
- Ideal for caravans, motorhomes, boats, and cabins using Alde hydronic heating
- Designed for long‑term reliability and stable performance
Compatibility
This pump is suitable for the following Alde boiler systems:
- Alde Compact 3000
- Alde Compact 3010
It is also compatible with a wide range of Alde‑equipped caravans and motorhomes from major manufacturers.
Expansion Tank Fitment
This pump is designed specifically for installation inside:
- 3000‑0420 expansion tank
- 3000‑0495 expansion tank (also listed as 30000495)
The in‑tank mounting ensures quieter operation and improved heat‑distribution performance.
Technical Information
- Part Number: 2928420 (also known as 2928‑420)
- Voltage: 12V
- Current Draw: 0.2A
- Approx. Weight: 0.55 kg
- Compatible with Alde blue (2‑year) and pink (5‑year) antifreeze fluids
- Suitable for both new installations and replacement of older pump units
Installation Notes
For safety and compliance, this component should be installed by a competent person familiar with Alde heating systems. Always isolate 12V power and heating fluid before carrying out any work. After installation, the system must be bled and pressure‑checked to ensure correct operation and prevent airlocks.
Information Disclaimer
All technical details on this page are supplied for general information only and are provided exactly as received from the manufacturer or distributor. It is the customer’s responsibility to ensure this is the correct part for their specific caravan, motorhome, or heating system before ordering.





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