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Bosch 87161068450 Diverter Valve Assembly Features:
- Diverter valve assembly for gas condensing combination (combi) boilers.
- Routes heated water between the space heating circuit and the domestic hot water heat exchanger.
- Driven by a Minebea TA4Z07F stepper motor actuator for precise, repeatable port positioning.
- Actuator mounts in a black polymer carrier that clips onto the valve body.
- Keyed coupling transfers motion from the motor to the internal valve port.
- Supports instant hot water priority with fast return to heating.
- Includes valve housing, sealing cap and stem, and green polymer support bracket.
- Includes stainless steel mounting plate, slotted fitting tool, and two mounting screws.
- Alternate part number 8-716-106-845-0.
Fits These Bosch Models:
- KWB28-3.
- KWB35-3.
- KWB42-3.
Additional Features:
The Bosch 87161068450 Diverter Valve Assembly controls how heated water is routed inside gas condensing combination (combi) boilers, redirecting flow between the space heating circuit and the domestic hot water heat exchanger so the unit can switch between warming the home and delivering hot water at the tap. Its operation centers on a compact Minebea TA4Z07F stepper motor actuator mounted in a black polymer carrier that clips directly onto the valve body, driving the internal port through a keyed coupling for precise, repeatable positioning instead of the coarse open or closed action of a basic solenoid, which is what allows a combi boiler to prioritize hot water instantly and return to heating without lag. The set ships as a complete replacement kit with the valve housing, sealing cap and stem, a green polymer support bracket, a stainless steel mounting plate, a slotted fitting tool, and two mounting screws, so a technician has everything needed to finish the changeout in a single visit.