Worcester Bosch
Worcester Bosch Adapter PHE Right 8737604403
Right-hand plate heat exchanger adapter for Worcester Bosch Greenstar 1000 and 2000 series boilers, part 8737604403.
At a glance
- Also known as 1038397
£26.70
£22.25 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 Adapter (PHE Right) is a right-hand connection component for the plate heat exchanger on Worcester Greenstar boilers. It is identified by part number 8737604403 and is used on the Greenstar 1000 and 2000 series models listed below. The adapter forms part of the plate heat exchanger assembly, where it provides the right-hand hydraulic connection.
Signs this part needs replacing
- Water weeping or dripping from the right-hand plate heat exchanger connection.
- Visible corrosion, scale or cracking on the adapter body or threads.
- A leak that persists or returns after the connection has been tightened.
- Loss of system pressure traced to the plate heat exchanger area.
Before you order
- Confirm the boiler model appears in the Fits section above.
- Check the fault is at the right-hand plate heat exchanger connection, not the left-hand side or another joint.
- Inspect the existing adapter and its sealing face for damage before ordering.
Compliance
| Alternative numbers | 1038397 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 1000 SERIES GR1000W 24 C NG | 47-800-38 | 47-800-38 | — | — |
| WORCESTER GREENSTAR 1000 SERIES GR1000W 30 C NG | 47-800-39 | 47-800-39 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 25 C LPG | 47-800-35 | 47-800-35 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 25 C NG | 47-800-34 | 47-800-34 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 30 C LPG | 47-800-37 | 47-800-37 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 30 C NG | 47-800-36 | 47-800-36 | — | — |
| WORCESTER GREENSTAR GR1000W 24 C NG | — | — | — | |
| WORCESTER GREENSTAR GR1000W 30 C NG | — | — | — | |
| WORCESTER GREENSTAR GR2301iW 25 C LPG COMBI | — | — | — | |
| WORCESTER GREENSTAR GR2301iW 25 C NG COMBI | — | — | — |
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Documents & drawings
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