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Worcester Bosch Flue Seal 87161407860

Worcester Bosch

Worcester Bosch Flue Seal 87161407860

Worcester Bosch flue seal, part 87161407860, for 26 CDi RSF and 26CDi XTRA RSF gas boilers in NG and LPG variants.

At a glance

  • Part type: Gaskets, O-rings, seals and washers
  • Appliance family: 26 CDi RSF and 26CDi XTRA RSF
  • Also known as 1017513
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161407860
GC number
E04-638
Showing prices

£7.74

£6.45 ex. VAT · VAT at 20%

Available to order · 3 working days
Available to order · 3 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

This is a Worcester Bosch flue seal supplied under part number 87161407860. It sits within the flue path of the appliance, sealing the joint between flue components so that combustion products are carried away through the flue rather than escaping into the surrounding space. The seal is listed against the Worcester 26 CDi RSF and 26CDi XTRA RSF boiler range in both natural gas and LPG versions.

Signs this part needs replacing

  • Visible cracking, hardening or flattening of the seal material
  • Soot staining or discolouration around the flue joint
  • Signs of condensate weeping or staining at the flue connection
  • Combustion readings drifting outside the expected range on a flue gas analysis
  • The seal dislodging or failing to seat when the flue is reassembled

Before you order

  • Check the appliance GC number and model against the compatibility list to confirm the correct seal for your boiler.
  • Confirm the existing part number on the appliance or in the manufacturer's literature before ordering.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

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