PartsByCodespare parts by code

Siphon Horseshoe 4000

Part number (MPN)
8716121405
Check compatibility

Type your appliance model: we compare it with the 13 appliances in our sources.

Catalogue numberChecked sources
Direct linkseBay and Amazon
Free to useNo sign-up

Parts for the same appliances

OEM Replacement Part & Compatibility Table

Guide price (£)
Not available: check the current price with the seller
Source
manufacturer reference
checked 2026-11-05
Fitting notes

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate.

Compatible appliances

Always check the model and serial number on the data plate before ordering.

Frequently asked questions

Which appliances does 8716121405 fit?

The sources we checked list 8716121405 (Siphon Horseshoe 4000, Worcester Bosch) for: GR4700IW 25 C NG, GR4700IW 25 C LPG, GR4700IW 30 C LPG, GR4700IW 12 S NG, GR4700IW 12 S LPG, GR4700IW 15 S NG, GR4700IW 15 S LPG, GR4700IW 18 S NG, GR4700IW 18 S LPG, GR4700IW 21 S NG, GR4700IW 21 S LPG, GR4700IW 24 S NG, GR4700IW 24 S LPG. Always check the model and serial number on the data plate before ordering.

Does 8716121405 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 8716121405. Ask a Worcester Bosch stockist to confirm.

What should I check before fitting 8716121405?

Work on gas appliances must be carried out by a Gas Safe registered engineer. Check the model and serial number on the boiler data plate.

View on eBay

Some lists are dated and the part may have been superseded. Information only, compatibility not guaranteed.