GLOWWORM 0020018583 HYDRAULIC BLOC

  • Our Part No: 1337527
  • MPN: 0020018583

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

Please see other available options on this page.

Other Available Options...

Replacement Part

SAUNIER DUVAL HYDRAULIC BLOCK

£156.00 inc VAT

GLOWWORM 0020018583 HYDRAULIC BLOC.

Product Information: The diverter valve is a mechanism that only appears in combi boilers. It allows the hot water to be directed to the central heating system (radiators, etc.) or to the domestic hot water system (taps, etc.). This feature is what seperates a normal boiler from a combi boiler due to the fact the boiler can provide hot water and heating without the need for a cylinder.

We only have this part as fitting one appliance, The Glowworm XTRAMAX HE . If this isn't the model you have, please contact us before ordering so we can confirm this part is compatible. In the next tab there is an appliance grid with a link to the Glowworm XTRAMAX HE , Please follow this link to view all parts available for that model and to download any available manuals.

We recommend that all parts are fitted by a fully qualified gas safe certified engineer. Please feel free to contact us if you require our assistance locating a part. Collectively we have over 200 years of boiler spares knowledge and distribution experience and our friendly call centre staff will be happy to help you with any query you may have


The GLOWWORM 0020018583 HYDRAULIC BLOC is a genuine, brand new Glowworm Boiler Spares product, covered by a Glowworm Boiler Spares manufacturer's guarantee.

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

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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