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Worcester Bosch O-Ring Greenstar RSF 87102050620

Worcester Bosch

Worcester Bosch O-Ring Greenstar RSF 87102050620

Worcester Bosch 87102050620 O-ring seal for the Greenstar RSF natural gas appliance; a small rubber sealing component for a mating joint.

At a glance

  • Part type: O-ring
  • Also known as 1012357
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87102050620
Showing prices

£0.88

£0.73 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 87102050620 is an O-ring seal supplied by Worcester Bosch for use in its gas-fired heating appliances. It sits in a groove between two mating faces and compresses to form a watertight or gastight joint. This example is listed against the Worcester Bosch Greenstar RSF natural gas appliance.

Signs this part needs replacing

  • Weeping or dripping at the joint the ring seals
  • Visible flattening, cracking or perishing of the rubber
  • A hardened or brittle ring that no longer sits proud of its groove
  • Scale, sludge or debris trapped on the sealing face
  • A joint that leaks again shortly after being reassembled

Before you order

  • Confirm the part number against the appliance data plate and the component being replaced
  • Check the appliance model against the compatibility list below before ordering
  • 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.