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Buderus Connection Return Combi-Motor/PRV 78165

Buderus

Buderus Connection Return Combi-Motor/PRV 78165

Return connection for the combi motor and pressure relief valve on Buderus 500 series combi boilers, part 78165.

At a glance

  • Appliance family: Buderus 500 series combi boilers
  • Also known as 2240850
Manufacturer part no.
78165
Showing prices

£94.79

£78.99 ex. VAT · VAT at 20%

Available to order · 7 working days
Available to order · 7 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 CONNECTION RETURN COMBI-MOTOR/PRV is a Buderus return connection component used on the 500 series combi boiler platform. It forms the return-side connection point between the combi motor assembly and the pressure relief valve. Buderus part number 78165.

Signs this part needs replacing

  • Visible weeping or dripping at the return connection on the combi motor or PRV side
  • Scale or corrosion deposits around the connection body or its joints
  • Evidence of water tracking or staining below the connection area
  • Physical damage or distortion to the connection where it seats against the adjacent components
  • Repeated pressure loss traced to the return connection point

Before you order

  • Confirm your appliance model against the fit list: 500-24C, 500-24S or 500-28C
  • Check the GC number on the appliance data badge matches the model you are working on
  • Verify the part number 78165 against the component being replaced
  • Inspect the surrounding return pipework and connections before fitting

Not sure which part?

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