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Worcester Bosch 1/2 inch drain cock 87161084850

Worcester Bosch

Worcester Bosch 1/2 inch drain cock 87161084850

Genuine Worcester Bosch 1/2 inch drain cock, part 87161084850, used across the CAM 5, Danesmoor, Heatslave II, Condens 2000 and FBOC oil boiler ranges.

At a glance

  • Also known as 1021251
Manufacturer part no.
87161084850
Showing prices

£17.03

£14.19 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

This is Worcester Bosch's 1/2 inch drain cock, part number 87161084850, used to drain water from the heating system on a wide range of Worcester oil-fired boilers.

Signs this part needs replacing

  • Dripping or weeping from the drain cock when closed
  • Seized or won't open when draining down the system
  • Visible corrosion or damage to the body or seal
  • Won't seal fully after use, leaving a slow leak

Before you order

  • Match this part number against your existing drain cock
  • Isolate the water supply and relieve system pressure before removal
  • Replacement should only be carried out by an OFTEC-registered oil heating engineer

Not sure which part?

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