Description

Viessmann 7874668 High Efficiency Pump Replacement | Fits Vitodens 100-W & 200-W Boilers

Upgrade or replace your existing boiler circulation pump with the Viessmann 7874668 High Efficiency Pump. Designed specifically for Viessmann Vitodens 100-W and 200-W series boilers, this part ensures optimal water circulation, reduced energy consumption, and long-term reliability.

Compatible Viessmann Boiler Models & GC Numbers:

Vitodens 100 WB1C Series:

• 19kW System (Serial No. 7499423) – GC No. 41-819-26

• 26kW Combi (Serial No. 7499425) – GC No. 47-819-20

• 26kW System (Serial No. 7499424) – GC No. 41-819-27

• 30kW Combi (Serial No. 7499427) – GC No. 47-819-21

• 30kW System (Serial No. 7499426) – GC No. 41-819-28

• 35kW Combi (Serial No. 7499429) – GC No. 47-819-22

• 35kW System (Serial No. 7499428) – GC No. 41-819-29

Vitodens 100 WBP JA Series:

• 25kW Combi (Serial No. 7501297) – GC No. 47-819-26

• 29kW Combi (Serial No. 7501298) – GC No. 47-819-27

Vitodens 100-W WB1B Series:

• 26kW Combi (Serial No. 7373061) – GC No. 47-819-12

• 26kW System (Serial No. 7373060) – GC No. 41-819-18

• 30kW Combi (Serial No. 7373063) – GC No. 47-819-13

• 30kW System (Serial No. 7373062) – GC No. 41-819-19

• 35kW Combi (Serial No. 7373065) – GC No. 47-819-14

• 35kW System (Serial No. 7373064) – GC No. 41-819-20

Vitodens 100-W WB1C Series (Newer):

• 30kW Combi (Serial No. 7441745) – Diagram Available

Vitodens 200 WB2B Series:

• 19kW System (Serial No. 7248823) – GC No. 41-819-14

• 30kW Combi (Serial No. 7248827) – GC No. 47-819-10

• 30kW System (Serial No. 7248826) – GC No. 41-819-16

• 35kW Combi (Serial No. 7248829) – GC No. 47-819-11

• 35kW System (Serial No. 7248828) – GC No. 41-819-17

Vitodens 200-W WB2B/WB2C Series:

• 35kW Combi (Serial No. 7194477) – Diagram Available

• 30kW System WB2C (Serial No. 7424988) – GC No. 41-819-16 WB2C

• 35kW System WB2C (Serial No. 7424990) – GC No. 41-819-17 WB2C

Common Questions :

Q1: What boilers does the Viessmann 7874668 High Efficiency Pump fit?
A1: It fits Viessmann Vitodens 100-W (WB1B, WB1C, WBP JA) and 200-W (WB2B, WB2C) models with multiple GC numbers listed above.

Q2: Is the 7874668 pump a genuine grundfos part?
A2: Yes, it’s a 100% OEM  replacement part designed for perfect compatibility and efficiency..

Q3: Can I install the 7874668 pump myself?
A4: Installation should be carried out by a Gas Safe registered engineer to ensure safety and maintain boiler warranty.

Q4: What are the benefits of using a high efficiency pump in Viessmann boilers?
A5: Improved circulation, reduced energy use, quieter operation, and longer boiler lifespan