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Worcester Bosch Flow Regulator E-Lp 11 Litre 87186842130

Worcester Bosch

Worcester Bosch Flow Regulator E-Lp 11 Litre 87186842130

Worcester Bosch 87186842130 E-Lp flow regulator rated at 11 litres, a Worcester spare for Greenstar Si Compact and i ErP appliances.

At a glance

  • Part type: Flow regulator
  • Also known as 1031159
  • This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Manufacturer part no.
87186842130
GC number
J04-449
Showing prices

£11.52

£9.60 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 87186842130 is a flow regulator rated at 11 litres and designated E-Lp. It is a Worcester spare component that governs water flow through the appliance, helping to hold system pressure steady and keep performance consistent across the operating range. It is used across the Greenstar Si Compact and Greenstar i ErP appliance families.

Signs this part needs replacing

  • Domestic hot water flow rate drops or becomes inconsistent at the outlet
  • Hot water temperature fluctuates during draw-off
  • The appliance struggles to hold a steady flow rate and cycles in response
  • Scale or debris is visible around the regulator body or its seating
  • Measured flow sits outside the range the appliance is set up to deliver

Before you order

  • Check the GC number and the appliance serial plate to confirm the correct variant before ordering
  • Cross-reference alternative number 1031159 against the component being removed
  • Inspect the seals and gaskets on the water circuit and renew them if they show wear
  • 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.