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Viessmann Profile Gasket 7817676

Viessmann

Viessmann Profile Gasket 7817676

Viessmann profile gasket, part number 7817676, for Vitodens WB2 and WB3A boilers.

At a glance

  • Appliance family: Vitodens 200 WB2 and Vitodens WB3A system boilers
  • Also known as 2321586
Manufacturer part no.
7817676
Showing prices

£49.10

£40.92 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 working days
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 PROFILE GASKET is a Viessmann sealing component listed under part number 7817676. It is used on Vitodens 200 WB2 and Vitodens WB3A system gas boilers, where it forms the seal at the joint it is profiled to match. The shaped profile seats into the corresponding housing face to prevent water or combustion gas loss at that connection.

Signs this part needs replacing

  • Weeping or water tracking at the joint the gasket seals
  • Visible hardening, flattening or cracking of the gasket material
  • Crush damage or a deformed profile where the gasket has been over-compressed
  • Scale or corrosion debris sitting on the sealing face
  • Recurring leaks after the joint has been re-tightened

Before you order

  • Confirm the boiler model and serial number against the fitment list above
  • Check the existing gasket profile and seating face before ordering
  • Verify the part number 7817676 matches the gasket currently fitted
  • Inspect the mating surfaces for pitting or distortion that would prevent a clean seal

Not sure which part?

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