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Myson Pump CP61AS

Sime

Myson Pump CP61AS

Myson CP61AS 1-inch circulation pump with extended body for automatic air vent, suitable for Sime Friendly Format and Super MKII boilers.

At a glance

  • Also known as 2048024
Manufacturer part no.
6135939
Showing prices

£239.41

£199.51 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 Myson CP61AS is a 1-inch circulation pump used in Sime boilers. It features an extended body to accommodate an automatic air vent (AAV), making it a non-standard variant. This pump replaces part number 6124810 and is suitable for Sime Friendly Format and Super MKII series boilers.

Signs this part needs replacing

  • Boiler fails to heat radiators or hot water
  • Pump emits grinding, humming, or excessive noise
  • Leaks from the pump body or seals
  • Boiler overheats or locks out frequently
  • Pump does not run when there is demand

Before you order

  • Confirm your boiler model matches the fit list
  • Check the pump connections are 1 inch
  • Verify the existing pump has an extended body for an AAV
  • Check the part number on the existing pump (CP61AS or 6124810)

Not sure which part?

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