Description
Actuator/Diverter Valve Motor Worcester Greenstar New
This Worcester diverter valve motor controls the flow of water inside your Greenstar boiler. The actuator motor directs hot water to either the heating system or your taps. The part number 87172043450 ensures a perfect fit and smooth performance.
Compatible Boilers
To help you find the right match, this actuator motor is compatible with the following boiler models:
Worcester Greenstar HE/HE Plus Series:
Greenstar 25 HE Combi (GC No. 47-311-73)
Greenstar 30 HE Combi (GC No. 47-311-74)
Greenstar 30 HE Plus (GC No. 47-311-75)
Greenstar HE Plus 28 (GC No. 47-311-56)
Greenstar HE Plus 35 (GC No. 47-311-57)
Worcester Greenstar Highflow & R Series:
Greenstar Highflow 440 (GC No. 47-311-82)
R25 HE Combi (GC No. 47-311-77)
R30 HE Combi (GC No. 47-311-78)
R30 HE Plus Combi (GC No. 47-311-79)
R35 HE Plus Combi (GC No. 47-311-80)
R40 HE Plus Combi (GC No. 47-311-81)
Worcester Greenstar FSN and System Series:
Greenstar CC1 FSN 29kW (GC No. 47-108-05)
Greenstar CS1 FSN 28kW System (GC No. 41-108-02)
Greenstar R28 HE System (GC No. 41-311-62)
Worcester RD Series (May 2003 Onwards):
RD430I (GC No. 41-108-06, Part No. 7712231670)
RD532 (GC No. 41-108-13, Part No. 7713231737)
RD532I (GC No. 47-108-10, Part No. 7713231724)
RD537I (GC No. 47-108-11, Part No. 7713231734)
RD542I (GC No. 47-108-12, Part No. 7713231723)
Why Choose This Product?
This Worcester actuator diverter motor offers dependable switching between heating and hot water. It’s ideal for fixing hot water delays or heating faults. With part number 87172043450, it guarantees compatibility with a wide boiler range. Designed by Worcester Bosch, it meets strict quality standards for lasting reliability. Choose this part for a simple, cost-effective repair that keeps your home warm and water hot.
Delivery and Return
We dispatch all orders placed by 1 PM the same working day. Choose standard delivery or upgrade to next-day courier service at checkout. If you’re not fully satisfied, return it within 30 days in original condition.
Reminder: Always use a Gas Safe registered engineer for installation and repairs.
Frequently Asked Questions (FAQs)
1: What does the Worcester Greenstar diverter valve motor do?
A: It controls the flow of hot water inside your boiler, directing it to either the heating system or taps.
2: Which part number do I need for my Worcester Greenstar boiler?
A: Use part number 87172043450 for compatibility with multiple Greenstar HE, HE Plus, Highflow, R, FSN, and RD series boilers.
3: Can this actuator motor fix hot water delays?
A: Yes. Replacing a faulty diverter motor resolves hot water delays and heating inconsistencies.
4: Is this diverter motor brand new or refurbished?
A: This part is brand new and fully tested for reliable performance.
5: Do I need a professional to install it?
A: Yes. Always use a Gas Safe registered engineer for safe installation and to maintain warranty coverage.













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