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Worcester Bosch Seal 18mm 87161061090

Worcester Bosch

Worcester Bosch Seal 18mm 87161061090

Worcester Bosch 18mm seal, part 87161061090, for Junior RSF and Greenstar boiler models; seals a joint to prevent leaks.

At a glance

  • Part type: Gaskets, seals and washers
  • Also known as 1014825
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161061090
GC number
H05-296
Showing prices

£5.82

£4.85 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

The Worcester Bosch 87161061090 is an 18mm seal from the manufacturer's gaskets, seals and washers range. It sits at a joint inside the appliance and compresses to form a tight, airtight barrier that keeps water or flue gases where they belong. It is used across a number of Worcester Bosch domestic gas boilers, including the Junior RSF and Greenstar families.

Signs this part needs replacing

  • Weeping or damp staining at the joint the seal serves
  • The seal has hardened, flattened, cracked or swollen with age
  • Discolouration, scale or residue built up on the sealing face
  • System pressure dropping repeatedly and needing regular topping up
  • A faint smell of gas around the appliance - isolate the supply and call a Gas Safe registered engineer

Before you order

  • Check the GC number and data plate on the appliance to confirm this seal is the correct item for your model
  • Quote part number 87161061090 or alternative number 1014825 when ordering
  • If the joint is being opened for other work, check whether any other seals on the same assembly also need renewing
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

Not sure which part?

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