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Worcester Bosch Flue Elbow Test Plug White 87161112530

Worcester Bosch

Worcester Bosch Flue Elbow Test Plug White 87161112530

White flue elbow test plug for Worcester Bosch Greenstar boilers, part 87161112530, sealing the flue sampling point on the elbow.

At a glance

  • Part type: Flue elbow test plug
  • Also known as 1020435
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87161112530
Showing prices

£4.96

£4.13 ex. VAT · VAT at 20%

In stock
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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

The Worcester Bosch flue elbow test plug is a white sealing plug that closes the sampling point on the flue elbow of Greenstar range boilers. The aperture is used for combustion analysis, and the plug seals it once checks are complete so that flue gases stay within the flue path. Worcester Bosch supplies the item under part number 87161112530.

Signs this part needs replacing

  • The test plug is missing from the flue elbow sampling point
  • The plug body is cracked or split
  • The material has hardened or perished and no longer seals the aperture
  • The plug sits loosely and flue gases escape at the test point
  • Discolouration or heat damage is visible around the plug

Before you order

  • Match part number 87161112530 against your boiler's manual or parts list.
  • Cross-check the alternative numbers 1020435 and WB87161112530 if you are working from an older reference.
  • 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.