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Worcester Bosch O-Ring 22mm x 3mm 87161067470

Worcester Bosch

Worcester Bosch O-Ring 22mm x 3mm 87161067470

Worcester Bosch 22mm x 3mm EPDM O-ring, supplied in a pack of 10, for Greenstar combi and system boilers. Part 87161067470.

At a glance

  • Part type: Gaskets, seals and O-rings
  • Also known as 1015051, N1179
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161067470
GC number
H10-261
Showing prices

£4.42

£3.68 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 87161067470 is a 22mm x 3mm O-ring moulded in EPDM rubber, supplied as a pack of 10. It is a sealing component used across the Greenstar family of combi and system boilers, where it sits in a machined groove and compresses between two mating faces to hold a water-carrying joint tight. As a wear item it is replaced whenever a joint is broken down or a weep develops.

Signs this part needs replacing

  • A weep or drip at the joint the O-ring seals, often showing as a crusty white or rusty stain on nearby metalwork.
  • The ring has flattened, hardened or taken a set, so it no longer springs back when the joint is opened.
  • Visible cracking, nicks or a cut across the ring section after the joint has been disturbed.
  • Scale or sludge build-up on the ring, which stops it seating squarely in its groove.
  • A joint that keeps weeping after being nipped up again, indicating the seal rather than the fixing is at fault.

Before you order

  • Check the GC number or serial plate on the appliance and confirm the model appears in the compatibility list below.
  • Confirm the part number 87161067470 and the GC number H10-261 against the appliance before ordering.
  • If other seals or gaskets are being disturbed during the same repair, check whether they are needed as well.
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.

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