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Buderus Heat Exchanger Gasket 8718600021

Buderus

Buderus Heat Exchanger Gasket 8718600021

Heat exchanger gasket for Buderus 500 and 600 series gas boilers, part number 8718600021.

At a glance

  • Also known as 2240014
Manufacturer part no.
8718600021
GC number
H78-025
Showing prices

£22.80

£19.00 ex. VAT · VAT at 20%

Available to order · 1 working day
Available to order · 1 working day
Not certain it's the right part? The technical team verifies fitment before dispatch — no charge, and it stops a second trip.Call the technical teamSend a technical question

Same-day dispatch

Ordered by 4pm Mon–Fri, 10:30am Sat.

30-day returns

Unused, in original packaging.

What it is

The Buderus GASKET - HEAT EXCHANGER is a heat exchanger seal for Buderus gas boilers. It is identified by part number 8718600021 and is used to seal the heat exchanger joint, preventing water loss from the appliance. The part sits within the heat exchanger category in the gas boiler spares range.

Signs this part needs replacing

  • Water weeping or dripping from the heat exchanger joint
  • Visible hardening, cracking, flattening or deterioration of the gasket
  • Corrosion, staining or scale around the heat exchanger sealing face
  • Repeated loss of system pressure with no other obvious leak source

Before you order

  • Confirm the boiler model matches one of the listed Buderus 500 or 600 series appliances
  • Verify the part number 8718600021 against the appliance documentation
  • Check the heat exchanger sealing faces for damage, scale or corrosion before fitting
  • Ensure the heat exchanger is depressurised and drained before removing the old gasket

Not sure which part?

Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.