Description

Viessmann 7840565 (Now 7876450) Pump UPM3 15-75 –  Circulating Pump for Vitodens 100 & 111 Boilers

The Viessmann 7840565 Pump, now replaced by Viessmann 7876450 UPM3 15-75, is an official OEM circulation pump used in Viessmann Vitodens 100-W and 111-W System and Combi boiler models.

This updated pump ensures optimal water circulation, energy efficiency, and quiet operation, maintaining the premium heating performance expected from Viessmann boilers. The UPM3 15-75 model provides advanced pump control for modern ErP-compliant heating systems, ensuring long-lasting durability and smooth operation.

Compatible Viessmann Boilers and GC Numbers:

Vitodens 100-W System ErP (WB1HA Models):

• 19kW – GC No. 41-819-36 (7543420)

• 26kW – GC No. 41-819-37 (7543421)

• 30kW – GC No. 41-819-38 (7543423)

• 35kW – GC No. 41-819-39 (7543425)

Vitodens 100-W System (WB1HC Models):

• 19kW – GC No. 41-819-40 (7570671)

• 26kW – GC No. 41-819-41 (7570672)

• 30kW – GC No. 41-819-42 (7570674)

• 35kW – GC No. 41-819-43 (7570676)

Vitodens 100-W Combi (WB1KC Models):

• 26kW – GC No. 47-819-40 (7570673)

• 30kW – GC No. 47-819-41 (7570675)

• 35kW – GC No. 47-819-42 (7570677)

Vitodens 111-W & 111-W B1LB Models:

• 26kW – GC No. 47-819-43 (7570732)

• 35kW – GC No. 47-819-44 (7570733)

• 111-W B1LB 26kW – GC No. 7543448

• 111-W B1LB 35kW – GC No. 7543449

Please note: Before placing your order you must check your part matches the Manufacturer’s Part Number stated above.

Meanwhile, if you are looking for any Viessmann related  products please click the link: Viessmann spares

At Heating and catering parts,

We certainly strive to provide the best possible customer experience. Consequently, we understand that sometimes a product may not meet your expectations or requirements. That is why we offer a comprehensive 30-day return policy to ensure your satisfaction. Please read our full Return Policy

We appreciate you buying from our store. Usually, If your order is received by 1:00 p.m. EST (Monday–Friday), we will ship the item the same day. You can count on us to deliver quickly and safely. In other words, we take pride in our prompt and trustworthy service and will do everything we can to ensure the safe arrival of your package.

Please note that weekends are not included in our next-day delivery guarantee. Delivery for orders placed on Fridays (the next day) is on the following Monday. At the same time select the Saturday delivery option at checkout if you’d like your purchases delivered on a weekend day.

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