Worcester Bosch
Worcester Bosch Sealing Plate (Hydraulic Block) 8737604544
Sealing plate for the hydraulic block in Worcester Bosch Greenstar 1000 Series combi boilers, part number 8737604544.
At a glance
- Appliance family: Greenstar 1000 Series
- Also known as 1038319
£8.35
£6.96 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 sealing plate forms part of the hydraulic block assembly on Worcester Bosch Greenstar 1000 Series combi boilers. It sits within the block to seal the mating faces and prevent water escaping from the assembly. The plate is a serviceable component, replaced when the existing seal no longer holds a watertight joint.
Signs this part needs replacing
- Water weeping or dripping from the hydraulic block area
- Damp staining, crusting or residue around the block faces
- Scale build-up or corrosion visible on the sealing surface
- The plate is deformed, hardened or flattened
- System pressure drops and needs frequent topping up
Before you order
- Confirm your boiler model against the fit list above
- Check the part number 8737604544 against the existing component or the manufacturer's parts list
- Isolate the water supply and power before removing the hydraulic block
- Inspect the surrounding seals and connections while the block is accessible
Compliance
| Alternative numbers | 1038319 |
|---|
| 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 GR1000W 24 C NG | — | — | — | |
| WORCESTER GREENSTAR GR1000W 30 C NG | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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