Worcester Bosch
Worcester Bosch Body 3-Way Valve 5/4 20374
Three-way valve body with 5/4 connections for Worcester Bosch Greenstar Condens 7000 series appliances.
At a glance
- Appliance family: Greenstar Condens 7000 series
- Also known as 1200342
£542.23
£451.86 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Worcester Bosch 20374 is a 3-way valve body with 5/4 connections, used in Greenstar Condens 7000 series appliances. It forms the body section of the diverter valve that directs water between the heating circuit and the domestic hot water circuit. The body carries the port connections and houses the valve mechanism.
Signs this part needs replacing
- No hot water while heating continues to run, or the reverse
- Water leaking from the valve body, spindle or port joints
- The actuator moves but flow does not switch between heating and hot water
- System debris causing the valve to stick or jam
- Visible corrosion or scale around the valve body connections
Before you order
- Confirm your appliance model and GC number against the fit list above
- Check that the connection size on the existing valve is 5/4
- Confirm whether the valve body alone or the complete valve assembly is required
- Isolate and drain the appliance before fitting
Compliance
| Alternative numbers | 1200342 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR CONDENS 7000 SERIES GC7000WP 50 23 | — | — | — | |
| WORCESTER GREENSTAR CONDENS 7000 SERIES GC7000WP 65 23 | 41-406-67 | 41-406-67 | — | — |
| WORCESTER GREENSTAR CONDENS GC7000WP 50 23 | — | — | — | |
| WORCESTER GREENSTAR CONDENS GC7000WP 65 23 | — | — | — |
Documents & drawings
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No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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