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Worcester Bosch O-Ring 10 Per Pack 87161165490

Worcester Bosch

Worcester Bosch O-Ring 10 Per Pack 87161165490

At a glance

  • Part type: Gaskets, O-rings, seals and washers
  • Also known as 1019877
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161165490
GC number
E74-575
Showing prices

£4.96

£4.13 ex. VAT · VAT at 20%

In stock
Cut-off passed — dispatches next working day
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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 O-ring, supplied as a pack of ten under part number 87161165490. It is a circular elastomer seal used to close the joint between mating components inside Worcester Bosch heating appliances, preventing water or gas-path leakage at that connection. The part sits within the Worcester Bosch Greenstar family and is shared across a large number of combi and system models.

Signs this part needs replacing

  • A visible weep or drip at the joint the O-ring seals
  • Water staining, crusting or limescale tracking around the sealing face
  • The O-ring feels hard, flattened or brittle rather than pliable
  • Cracks, nicks or a flattened cross-section visible on removal
  • Recurring pressure loss or a joint that will not seal after reassembly

Before you order

  • Check the appliance GC number or serial plate against the compatibility list to confirm this O-ring suits your model.
  • Confirm whether the joint also needs a gasket or seal kit, as the O-ring alone may not complete the repair.
  • Cross-check any previous number on the old component against the alternative codes listed here.
  • 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.