Description
Worcester Bosch 87186893570 Plastic Capillary Gauge – Greenstar Heatslave II
Worcester Bosch 87186893570 Plastic Capillary Gauge replacement part with manufacturer part number 87186893570. This exact item is a genuine, brand-new Worcester product. It is intended for the compatible appliances shown below, where listed. Match the boiler model and MPN before ordering.
Product Details
Brand: Worcester
Manufacturer part number (MPN): 87186893570
Condition: Genuine brand new
Boiler Compatibility
Check the exact appliance model and manufacturer part number before ordering.
This part fits the following 12 appliances:
Listed compatible appliances
- Worcester GSTAR H/SLAVE II 12/18 CBI OL — Browse Worcester parts (brand archive)
- Worcester GSTAR H/SLAVE II 18/25 CBI OL — Browse Worcester parts (brand archive)
- Worcester GSTAR H/SLAVE II 25/32 CBI OL — Browse Worcester parts (brand archive)
- Worcester GSTAR H/SLAVEII12/18 EXT CBIOL — Browse Worcester parts (brand archive)
- Worcester GSTAR H/SLAVEII12/18ERP+ CBIOL — Browse Worcester parts (brand archive)
- Worcester GSTAR H/SLAVEII18/25 EXT CBIOL — Browse Worcester parts (brand archive)
- Worcester GSTAR H/SLAVEII18/25ERP+ CBIOL — Browse Worcester parts (brand archive)
- Worcester GSTAR H/SLAVEII25/32 EXT CBIOL — Browse Worcester parts (brand archive)
- Worcester HEATSLAV II 18/25 ERP+ CBI OIL — Browse Worcester parts (brand archive)
- Worcester HEATSLAV II 25/32 ERP+ CBI OIL — Browse Worcester parts (brand archive)
- Worcester HTSL II EXT 25/32ERPV2 CBI OIL — Browse Worcester parts (brand archive)
- Worcester HTSL II EXT25/32ERP+V1 CBI OIL — Browse Worcester parts (brand archive)
Ordering and support
Before you order
Use the manufacturer part number as your main check. Do not rely on a similar-looking part.
Technical FAQs
How do I check that this is the correct replacement part?
Use manufacturer part number 87186893570 as the main check. Match it to the old part or appliance documentation, not only to a similar-looking product.
Will this part fit my boiler?
This exact part is listed for 12 appliance model(s). Check your appliance model, MPN and the GC Number tab before ordering.
Can a similar-looking part be used instead?
Do not rely on shape or appearance alone. Check the manufacturer part number and the exact appliance model before ordering a replacement.
Does the part number identify the cause of a boiler fault?
No. A part number helps identify a replacement item but does not diagnose a fault. Ask a suitably qualified professional to identify the cause where required.
Who should fit and test this part?
Installation and testing should be completed by a suitably qualified professional where required. This exact item is a genuine, brand-new Worcester product.
Related Worcester parts
Browse related Worcester boiler parts and Worcester Boiler Accessories.
Help and returns
For help checking this part, message us on WhatsApp. This item includes a 12-month warranty. Returns are subject to the 30-day returns policy.
Product check
The product details on this page are based on reviewed source information for this exact manufacturer part number.
Installation and testing should be completed by a suitably qualified professional where required.











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