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Ideal End Cap 1 1/2 Inch Tapped 055099

Ideal

Ideal End Cap 1 1/2 Inch Tapped 055099

Ideal 055099 threaded end cap, 1 1/2 inch BSP with a tapped 1/8 inch BSP port, for Ideal Commercial Concord Super boiler assemblies.

At a glance

  • Part type: Caps, plugs and sockets
  • Also known as 1170757
Manufacturer part no.
055099
Showing prices

£27.59

£22.99 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 Ideal 055099 is a threaded end cap with a tapped 1/8 inch BSP port, used to close a 1 1/2 inch BSP connection on Ideal Commercial boiler assemblies. It sits within the caps, plugs and sockets group of Ideal Commercial Boiler Spares and is specified across the Concord Super range. The tapped port lets a sensor, drain point or plug be fitted at the same location instead of blanking the connection entirely.

Signs this part needs replacing

  • Weeping or visible water tracking around the cap thread or the tapped port
  • Corrosion or pitting on the cap body, particularly where it meets the casting
  • Damaged or flattened threads that will not seal against the mating connection
  • A plug or fitting in the tapped port that will not tighten or hold pressure
  • Scale build-up around the joint after repeated drain-down and refill

Before you order

  • Confirm the appliance model and serial number against the compatibility list before ordering
  • Check the part number printed in the appliance manual or on the existing cap matches 055099
  • Inspect the mating thread and the tapped port for damage, as a worn thread will not seal with a replacement cap alone
  • Have a suitable thread sealant or jointing compound to hand for refitting

Not sure which part?

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