VAILLANT 0020009863 INSTALLATION KIT EXPANSION VESSEL

  • Our Part No: 1379436
  • MPN: 0020009863

We're sorry but this product has now been discontinued by Vaillant Boiler Spares and can no longer be purchased.

No known replacement is available.

Why Choose DHS?

VAILLANT 0020009863 INSTALLATION KIT EXPANSION VESSEL.

The expansion vessel is a small tank that is used to protect closed water systems from a spike in the pressure. The expansion vessel is filled with air that acts as a cushion against pressure surges within the system.

This part is present in 9 different appliances on our system including the VAILLANT VIH GB 125 S (2005-2010 ) and the VAILLANT VIH GB 155 S (2005-2010 ), VAILLANT VIH GB 180 S (2005-2010 ), VAILLANT VIH GB 210 S (2005-2010 ), VAILLANT VIH GB 260 S (2005-2010 ) . At the bottom of the page is an appliance grid with links to all appliances that contain this part, Please use this if you would like to view all other spares that fit that model and download the user manual for that appliance. Please contact us before ordering if none of these models match the one you have so we can confirm this part is compatible.

The VAILLANT 0020009863 INSTALLATION KIT EXPANSION VESSEL is a genuine, brand new Vaillant Boiler Spares product, covered by a Vaillant Boiler Spares manufacturer's guarantee.

Not what you're looking for? Try our unique Spares Finder tool or you can view all Vaillant Boiler Spares products.

For advice on this or any product, please call us on 0330 123 3707, email us at web@dhsspares.co.uk, or see additional ways to contact us here.

This part fits the following 20 appliances (sorted alphabetically):

May fit others. If you are unsure of your product model, or would like more information, please contact us.

At DHS we offer a range of product options to suit different budgets and requirements, while maintaining quality and reliability across all categories.

Below is an explanation of each product type available on our website. Please note that not all products will have all options available.

Unbranded Part

BEST VALUE

Unbranded Component Product. Genuine manufacturer component, but no branded packaging.

  • Sourced Directly from the Manufacturer
  • Supplied in Unbranded Packaging
  • Same Quality & Function as OEM Version
  • Cost Effective Alternative
  • 12 Month Warranty

Branded Part

ORIGINAL PART

Original Equipment Manufacturer Component with branded packaging.

  • Genuine Original Part
  • Sourced Directly from the Manufacturer
  • Manufacturers Official Packaging
  • Trusted Manufacturer Quality
  • 12 Month Warranty

Alternative Part

Compatible replacement parts sourced from a third party Manufacturer.

  • Lower Cost Replacement Option
  • Fully Functional Alternative
  • Appearance, design or materials may differ from the original part
  • 12 Month Warranty

Refurbished Part

Original OEM components that have been professionally refurbished.

  • Genuine OEM Component Professionally Refurbished and Tested
  • Environmentally Conscious Choice
  • Excellent Value for Money
  • 12 Month Warranty

Need Help Choosing?

If you are unsure of which product category is right for your repair or installation, our team is happy to help.

Contact us for expert advice on compatibility, pricing and availability.

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