PartsByCodespare parts by code

6 Bar Pressure Relief Valve

Part number (MPN)
0020174846
Check compatibility

Type your appliance model: we compare it with the 8 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
retailer parts list
checked 2026-11-06
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. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

Compatible appliances

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

Frequently asked questions

Which appliances does 0020174846 fit?

The sources we checked list 0020174846 (6 Bar Pressure Relief Valve, Vaillant) for: ECOTEC PLUS VU 1206/5-5 SYS NG, ECOTEC PLUS VU 806/5-5 SYS NG, ECOTEC + VU 1206/5-5 R2 SYS NG, ECOTEC + VU 806/5-5 R2 SYS NG, E/TEC+ VU 1006/5-5R3 SYSTEM NG, ECOTEC PLUS VU 1006/5-5 SYS NG, ECOTEC + VU 1006/5-5 R2 SYS NG, ETEC + VU GB 1006/5-5R4 SYS NG. Always check the model and serial number on the data plate before ordering.

Does 0020174846 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 0020174846. Ask a Vaillant stockist to confirm.

What should I check before fitting 0020174846?

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. Source: a parts retailer's list, not the manufacturer's: confirm the part number on the data plate or with the manufacturer before ordering.

View on eBay

Some lists are dated and the part may have been superseded.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