Worcester Bosch 87174010290 Domestic Hot Water Pressure Relief Valve – Greenstar

Description

Worcester Bosch 87174010290 Domestic Hot Water Pressure Relief Valve – Greenstar

Worcester replacement part with manufacturer part number 87174010290. 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): 87174010290
Condition: Genuine brand new

Boiler Compatibility

Check the exact appliance model and manufacturer part number before ordering. See the GC Number tab for the verified GC references.

This part fits the following 279 appliances:

Listed compatible appliances

• Worcester 15I ERP V1 SYSTEM NG
• Worcester 15I ERP V2 SYSTEM NG
• Worcester 15I ERP V3 SYSTEM NG
• Worcester 15I ERP V4 SYSTEM NG
• Worcester 15I ERP V5 SYSTEM NG
• Worcester 18I ERP V1 SYSTEM LPG
• Worcester 18I ERP V1 SYSTEM NG
• Worcester 18I ERP V2 SYSTEM LPG
• Worcester 18I ERP V2 SYSTEM NG
• Worcester 18I ERP V3 SYSTEM LPG
• Worcester 18I ERP V3 SYSTEM NG
• Worcester 18I ERP V4 SYSTEM LPG
• Worcester 18I ERP V4 SYSTEM NG
• Worcester 18I ERP V5 SYSTEM LPG
• Worcester 18I ERP V5 SYSTEM NG
• Worcester 18I ERP V6 SYSTEM NG
• Worcester 21I ERP V1 SYSTEM LPG
• Worcester 21I ERP V1 SYSTEM NG
• Worcester 21I ERP V2 SYSTEM LPG
• Worcester 21I ERP V2 SYSTEM NG
• Worcester 21I ERP V3 SYSTEM LPG
• Worcester 21I ERP V3 SYSTEM NG
• Worcester 21I ERP V4 SYSTEM LPG
• Worcester 21I ERP V4 SYSTEM NG
• Worcester 21I ERP V5 SYSTEM LPG
• Worcester 21I ERP V5 SYSTEM NG
• Worcester 21I ERP V6 SYSTEM LPG
• Worcester 21I ERP V6 SYSTEM NG
• Worcester 24I ERP V1 SYSTEM LPG
• Worcester 24I ERP V1 SYSTEM NG
• Worcester 24I ERP V2 SYSTEM LPG
• Worcester 24I ERP V2 SYSTEM NG
• Worcester 24I ERP V3 SYSTEM LPG
• Worcester 24I ERP V3 SYSTEM NG
• Worcester 24I ERP V4 SYSTEM LPG
• Worcester 24I ERP V4 SYSTEM NG
• Worcester 24I ERP V5 SYSTEM LPG
• Worcester 24I ERP V5 SYSTEM NG
• Worcester 24I ERP V6 SYSTEM LPG
• Worcester 24I ERP V6 SYSTEM NG
• Worcester 25 SI COMPACT ERP COMBI LPG
• Worcester 25 SI COMPACT ERP COMBI NG
• Worcester 28 CDI COMPACT ERP COMBI LPG
• Worcester 28 CDI COMPACT ERP COMBI NG
• Worcester 30 CDI COMBI
• Worcester 30 SI COMPACT ERP COMBI LPG
• Worcester 30 SI COMPACT ERP COMBI NG
• Worcester 32 CDI COMPACT ERP COMBI LPG
• Worcester 32 CDI COMPACT ERP COMBI NG
• Worcester 35 CDI COMBI
• Worcester 35CDI PRE EMS COMBI NG
• Worcester 36 CDI COMPACT ERP COMBI LPG
• Worcester 36 CDI COMPACT ERP COMBI NG
• Worcester 40 CDI COMBI
• Worcester 533 COMPACT COMBI NG
• Worcester 533 COMPACT ERP COMBI NG
• Worcester 535 COMPACT COMBI NG
• Worcester 535 COMPACT ERP COMBI NG
• Worcester 9I ERP SYSTEM LPG
• Worcester 9I ERP V1 SYSTEM NG
• Worcester 9I ERP V2 SYSTEM NG
• Worcester 9I ERP V3 SYSTEM NG
• Worcester 9I ERP V4 SYSTEM NG
• Worcester 9I ERP V5 SYSTEM NG
• Worcester 9I ERP V6 SYSTEM NG
• Worcester BRITISH GAS 430I 30CDI FSN NG
• Worcester BRITISH GAS 532I 32CDI FSN NG
• Worcester BRITISH GAS 537I 37CDI FSN NG
• Worcester BRITISH GAS 542I 42CDI FSN NG
• Worcester CDI 26CDI XTRA-GB V2 COMBI NG
• Worcester CDI 30CDI OLD EMS COMBI LPG
• Worcester G/STAR 36 CDI COMP ERP SYS NG
• Worcester G/STAR CDI 30 OLDEMS V1 CBI NG
• Worcester G/STAR CDI 30 OLDEMS V2 CBI NG
• Worcester GR8300IW 30 C V1 COMBI LPG
• Worcester GR8300IW 30 C V2 COMBI LPG
• Worcester GR8300IW 30 C V3 COMBI LPG
• Worcester GR8300IW 30 C V4 COMBI LPG
• Worcester GR8300IW 30 C V5 COMBI LPG
• Worcester GR8300IW 30 C V6 COMBI LPG
• Worcester GR8300IW 30 CNG V1 COMBI NG
• Worcester GR8300IW 30 CNG V2 COMBI NG
• Worcester GR8300IW 30 CNG V3 COMBI NG
• Worcester GR8300IW 30 CNG V4 COMBI NG
• Worcester GR8300IW 30 CNG V5 COMBI NG
• Worcester GR8300IW 30 CNG V6 COMBI NG
• Worcester GR8300IW 35 C V1 COMBI LPG
• Worcester GR8300IW 35 C V2 COMBI LPG
• Worcester GR8300IW 35 C V3 COMBI LPG
• Worcester GR8300IW 35 C V4 COMBI LPG
• Worcester GR8300IW 35 C V5 COMBI LPG
• Worcester GR8300IW 35 C V6 COMBI LPG
• Worcester GR8300IW 35 CNG V1 COMBI NG
• Worcester GR8300IW 35 CNG V2 COMBI NG
• Worcester GR8300IW 35 CNG V3 COMBI NG
• Worcester GR8300IW 35 CNG V4 COMBI NG
• Worcester GR8300IW 35 CNG V5 COMBI NG
• Worcester GR8300IW 35 CNG V6 COMBI NG
• Worcester GR8300IW 40 C V1 COMBI LPG
• Worcester GR8300IW 40 C V2 COMBI LPG
• Worcester GR8300IW 40 C V3 COMBI LPG
• Worcester GR8300IW 40 C V4 COMBI LPG
• Worcester GR8300IW 40 C V5 COMBI LPG
• Worcester GR8300IW 40 C V6 COMBI LPG
• Worcester GR8300IW 40 CNG V1 COMBI NG
• Worcester GR8300IW 40 CNG V2 COMBI NG
• Worcester GR8300IW 40 CNG V3 COMBI NG
• Worcester GR8300IW 40 CNG V4 COMBI NG
• Worcester GR8300IW 40 CNG V5 COMBI NG
• Worcester GR8300IW 40 CNG V6 COMBI NG
• Worcester GR8300IW 45 C V1 COMBI LPG
• Worcester GR8300IW 45 C V2 COMBI LPG
• Worcester GR8300IW 45 C V3 COMBI LPG
• Worcester GR8300IW 45 C V4 COMBI LPG
• Worcester GR8300IW 45 C V5 COMBI LPG
• Worcester GR8300IW 45 C V6 COMBI LPG
• Worcester GR8300IW 45 CNG V1 COMBI NG
• Worcester GR8300IW 45 CNG V2 COMBI NG
• Worcester GR8300IW 45 CNG V3 COMBI NG
• Worcester GR8300IW 45 CNG V4 COMBI NG
• Worcester GR8300IW 45 CNG V5 COMBI NG
• Worcester GR8300IW 45 CNG V6 COMBI NG
• Worcester GR8300IW 50 C V1 COMBI LPG
• Worcester GR8300IW 50 C V2 COMBI LPG
• Worcester GR8300IW 50 C V3 COMBI LPG
• Worcester GR8300IW 50 C V4 COMBI LPG
• Worcester GR8300IW 50 C V5 COMBI LPG
• Worcester GR8300IW 50 C V6 COMBI LPG
• Worcester GR8300IW 50 CNG V1 COMBI NG
• Worcester GR8300IW 50 CNG V2 COMBI NG
• Worcester GR8300IW 50 CNG V3 COMBI NG
• Worcester GR8300IW 50 CNG V4 COMBI NG
• Worcester GR8300IW 50 CNG V5 COMBI NG
• Worcester GR8300IW 50 CNG V6 COMBI NG
• Worcester GR8700IW 30 C COMBI LPG
• Worcester GR8700IW 30 C COMBI NG
• Worcester GR8700IW 30 CB COMBI LPG
• Worcester GR8700IW 30 CB COMBI NG
• Worcester GR8700IW 35 C COMBI LPG
• Worcester GR8700IW 35 C COMBI NG
• Worcester GR8700IW 35 CB COMBI LPG
• Worcester GR8700IW 35 CB COMBI NG
• Worcester GR8700IW 40 C COMBI LPG
• Worcester GR8700IW 40 C COMBI NG
• Worcester GR8700IW 40 CB COMBI LPG
• Worcester GR8700IW 40 CB COMBI NG
• Worcester GR8700IW 45 C COMBI LPG
• Worcester GR8700IW 45 C COMBI NG
• Worcester GR8700IW 45 CB COMBI LPG
• Worcester GR8700IW 45 CB COMBI NG
• Worcester GR8700IW 50 C COMBI LPG
• Worcester GR8700IW 50 C COMBI NG
• Worcester GR8700IW 50 CB COMBI LPG
• Worcester GR8700IW 50 CB COMBI NG
• Worcester GREENSTAR 12I SYSTEM ERP
• Worcester GREENSTAR 12I V1 SYSTEM LPG
• Worcester GREENSTAR 12I V1 SYSTEM NG
• Worcester GREENSTAR 12I V2 SYSTEM LPG
• Worcester GREENSTAR 12I V2 SYSTEM NG
• Worcester GREENSTAR 12I V3 SYSTEM LPG
• Worcester GREENSTAR 12I V3 SYSTEM NG
• Worcester GREENSTAR 12I V4 SYSTEM LPG
• Worcester GREENSTAR 12I V4 SYSTEM NG
• Worcester GREENSTAR 12I V5 SYSTEM LPG
• Worcester GREENSTAR 12I V5 SYSTEM NG
• Worcester GREENSTAR 12I V6 SYSTEM LPG
• Worcester GREENSTAR 12I V6 SYSTEM NG
• Worcester GREENSTAR 15 I SYSTEM LPG
• Worcester GREENSTAR 15 I V1 SYSTEM LPG
• Worcester GREENSTAR 15 I V1 SYSTEM NG
• Worcester GREENSTAR 15 I V2 SYSTEM LPG
• Worcester GREENSTAR 15 I V2 SYSTEM NG
• Worcester GREENSTAR 15 I V3 SYSTEM LPG
• Worcester GREENSTAR 15 I V3 SYSTEM NG
• Worcester GREENSTAR 15 I V4 SYSTEM LPG
• Worcester GREENSTAR 15 I V4 SYSTEM NG
• Worcester GREENSTAR 15 I V5 SYSTEM LPG
• Worcester GREENSTAR 15 I V5 SYSTEM NG
• Worcester GREENSTAR 15 I V6 SYSTEM NG
• Worcester GREENSTAR 15I SYSTEM ERP
• Worcester GREENSTAR 18 I SYSTEM LPG
• Worcester GREENSTAR 18 I SYSTEM NG
• Worcester GREENSTAR 24 I SYSTEM LPG
• Worcester GREENSTAR 24 I SYSTEM NG
• Worcester GREENSTAR 25 SI COMP COMBI LPG
• Worcester GREENSTAR 25 SI COMP COMBI NG
• Worcester GREENSTAR 25I ERP
• Worcester GREENSTAR 25I ERP COMBI LPG
• Worcester GREENSTAR 28 CDI COMP COMB LPG
• Worcester GREENSTAR 28 CDI COMP COMBI NG
• Worcester GREENSTAR 29 CDI COMBI LPG
• Worcester GREENSTAR 29 CDI COMBI NG
• Worcester GREENSTAR 30 CDI SYSTEM LPG
• Worcester GREENSTAR 30 CDI SYSTEM NG
• Worcester GREENSTAR 30 SI COMP COMBI LPG
• Worcester GREENSTAR 30 SI COMP COMBI NG
• Worcester GREENSTAR 30I ERP
• Worcester GREENSTAR 30I ERP COMBI LPG
• Worcester GREENSTAR 32 CDI COMP COMB LPG
• Worcester GREENSTAR 32 CDI COMP COMBI NG
• Worcester GREENSTAR 34 CDI CLAS COMB LPG
• Worcester GREENSTAR 34 CDI CLAS COMBI NG
• Worcester GREENSTAR 34 CDI CLASSIC CB NG
• Worcester GREENSTAR 34CDI CLASSIC CB LPG
• Worcester GREENSTAR 35CDI FSN NG COMBI
• Worcester GREENSTAR 36 CDI COMP COMB LPG
• Worcester GREENSTAR 36 CDI COMP COMBI NG
• Worcester GREENSTAR 36 LXI COMBI NG
• Worcester GREENSTAR 38 CDI CLASSIC CB NG
• Worcester GREENSTAR 38 CDI COMBI LPG
• Worcester GREENSTAR 38 CDI COMBI NG
• Worcester GREENSTAR 38CDI CLASSIC CB LPG
• Worcester GREENSTAR 400 25 C COMBI LPG
• Worcester GREENSTAR 400 25 C COMBI NG
• Worcester GREENSTAR 400 30 C COMBI LPG
• Worcester GREENSTAR 400 30 C COMBI NG
• Worcester GREENSTAR 4000 GR4700IW 25 C C
• Worcester GREENSTAR 4000 GR4700IW 25 C C
• Worcester GREENSTAR 4000 GR4700IW 30 C C
• Worcester GREENSTAR 4000 GR4700IW 30 C C
• Worcester GREENSTAR 42CDI COMBI LPG
• Worcester GREENSTAR 430/I SYSTEM LPG
• Worcester GREENSTAR 430/I SYSTEM NG
• Worcester GREENSTAR 532/I COMBI LPG
• Worcester GREENSTAR 532/I COMBI NG
• Worcester GREENSTAR 533 COMPACT ERP
• Worcester GREENSTAR 535 COMPACT ERP
• Worcester GREENSTAR 537/I COMBI LPG
• Worcester GREENSTAR 537/I COMBI NG
• Worcester GREENSTAR 542/I COMBI LPG
• Worcester GREENSTAR 542/I COMBI NG
• Worcester GREENSTAR CDI 25 EMS COMBI LPG
• Worcester GREENSTAR CDI 25 EMS COMBI NG
• Worcester GREENSTAR CDI 25 EMS V1 CBI NG
• Worcester GREENSTAR CDI 25 EMS V2 CBI NG
• Worcester GREENSTAR CDI 27 EMS COMBI LPG
• Worcester GREENSTAR CDI 27 EMS COMBI NG
• Worcester GREENSTAR CDI 35 EMS COMBI LPG
• Worcester GREENSTAR CDI 35 EMS V2 CBI NG
• Worcester GREENSTAR CDI 37 EMS COMBI LPG
• Worcester GREENSTAR CDI 37 EMS COMBI NG
• Worcester GREENSTAR CDI 40 EMS COMBI LPG
• Worcester GREENSTAR CDI 40 EMS V1 CBI NG
• Worcester GREENSTAR CDI 40 EMS V2 CBI NG
• Worcester GREENSTAR I JUN 24 COMBI LPG
• Worcester GREENSTAR I JUN 24 COMBI LPG
• Worcester GREENSTAR I JUN 24I COMBI LPG
• Worcester GREENSTAR I JUN 24I COMBI NG
• Worcester GREENSTAR I JUN 28I COMBI LPG
• Worcester GREENSTAR I JUN 28I COMBI NG
• Worcester GREENSTAR I JUNIOR 24 COMBI NG
• Worcester GREENSTAR I JUNIOR 28 COMBI NG
• Worcester GREENSTAR SI 25 COMBI LPG
• Worcester GREENSTAR SI 25 COMBI NG
• Worcester GREENSTAR SI 30 COMBI LPG
• Worcester GREENSTAR SI 30 COMBI NG
• Worcester GRNSTAR 29 CDI CLASSIC CBI LPG
• Worcester GRNSTAR 29 CDI CLASSIC CBI NG
• Worcester GRNSTAR 30 CDI CLASSIC SYS LPG
• Worcester GRNSTAR 30 CDI CLASSIC SYS NG
• Worcester GRNSTAR 35 CDI CLASSIC SYS LPG
• Worcester GRNSTAR 35 CDI CLASSIC SYS NG
• Worcester GRNSTAR 42 CDI CLASSIC CBI NG
• Worcester GRNSTAR 42CDI CLASSIC CBI LPG
• Worcester GSTAR 42CDI CLASSIC COMBI NG
• Worcester GSTAR CDI 30 NEW EMS COMBI LPG
• Worcester GSTAR CDI 30 NEW EMS COMBI NG
• Worcester GSTAR H/SLAVE II 12/18 CBI OL
• Worcester GSTAR H/SLAVE II 18/25 CBI OL
• Worcester GSTAR H/SLAVE II 25/32 CBI OL
• Worcester GSTAR H/SLAVEII12/18 EXT CBIOL
• Worcester GSTAR H/SLAVEII12/18ERP+ CBIOL
• Worcester GSTAR H/SLAVEII18/25 EXT CBIOL
• Worcester GSTAR H/SLAVEII18/25ERP+ CBIOL
• Worcester GSTAR H/SLAVEII25/32 EXT CBIOL
• Worcester HEATSLAV II 18/25 ERP+ CBI OIL
• Worcester HEATSLAV II 25/32 ERP+ CBI OIL
• Worcester HTSL II EXT 25/32ERPV2 CBI OIL
• Worcester HTSL II EXT25/32ERP+V1 CBI OIL

Ordering and support

Before you order

Use the manufacturer part number as your main check. Do not rely on a similar-looking part. Compare the appliance model and the GC Number tab before ordering.

Technical FAQs

How do I check that this is the correct replacement part?

Use manufacturer part number 87174010290 as the main check. Match it to the old part or your appliance documentation, not only to a similar-looking product.

Will this part fit my boiler?

This part is listed for 279 appliance model(s). Check your exact boiler model, MPN and GC Number tab before ordering.

Can I use a similar-looking replacement part instead?

No. Small differences in connections, ratings or boiler versions can matter. Confirm the exact MPN before ordering.

Will fitting this part fix my boiler fault?

A replacement part alone does not confirm the cause of a fault. Correct diagnosis and testing are needed before fitting any part.

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.

Help and returns

For help checking this part, message us on WhatsApp. This genuine part includes a 12-month warranty. Returns are subject to the 30-day returns policy.

Product check

Use the appliance model and any listed GC number as extra checks before ordering.

Installation and testing should be completed by a suitably qualified professional where required.