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Regulator Replaces 3008651

Part number (MPN)
Z20032135
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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 Z20032135 fit?

The sources we checked list Z20032135 (Regulator Replaces 3008651, Riello) for: Riello Rdb4 Cf 488T50 3748850. Always check the model and serial number on the data plate before ordering.

Does Z20032135 have equivalent or superseded part numbers?

The sources we checked list no equivalents for Z20032135. Ask a Riello stockist to confirm.

What should I check before fitting Z20032135?

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.

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Some lists are dated and the part may have been superseded.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