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Glow-worm Hydraulic Block R-DIN Outlet 0020186163

Glow-worm

Glow-worm Hydraulic Block R-DIN Outlet 0020186163

Hydraulic block with R-DIN outlet for Glow-worm gas boilers, part number 0020186163.

Manufacturer part no.
0020186163
Showing prices

£58.39

£48.66 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 Glow-worm hydraulic block with R-DIN outlet forms part of the diverter valve assembly on Glow-worm gas boilers. It carries water through the hydraulic section of the boiler and directs flow between central heating and domestic hot water. The component is identified by part number 0020186163.

Signs this part needs replacing

  • Domestic hot water runs cold or fluctuates while the central heating works normally
  • Central heating warms up when only hot water is drawn
  • Water weeping or staining around the hydraulic block or diverter valve body
  • The diverter valve does not move between the heating and hot water positions

Before you order

  • Confirm the boiler model and GC number against the fit list
  • Check the part number marked on the existing hydraulic block
  • Verify that the R-DIN outlet variant is the one required for the appliance
  • Establish whether the fault lies with the block itself or the wider diverter valve assembly

Not sure which part?

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