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Flange Gasket (RS70-RS30)

Part number (MPN)
3003991
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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 3003991 fit?

The sources we checked list 3003991 (Flange Gasket (RS70-RS30), Riello) for: RS 64/E MZ 896 T OIL, Riello Rl100 661T1 3475215, Riello Rl100 661T1 3475216, Riello Rl100 661T1 3475217, Riello Rl100 661T1 3475218, Riello Rl100 661T1 3475220, Riello Rl100 661T1 3475221, Riello Rl100 661T1 3475222, Riello Rl100 661T1 3475223, Riello Rl100/M 670T1 3477212, Riello Rl100/M 670T1 3477213, Riello Rl130 662T1 3475415, Riello Rl130 662T1 3475416, Riello Rl130 662T1 3475417, Riello Rl130 662T1 3475418, Riello Rl130 662T1 3475420, Riello Rl130 662T1 3475421, Riello Rl130 662T1 3475422, Riello Rl130 662T1 3475423, Riello Rl130/M 671T1 3477412, Riello Rl130/M 671T1 3477413, Riello Rl70 660T1 3475015, Riello Rl70 660T1 3475016, Riello Rl70 660T1 3475017, Riello Rl70 660T1 3475018, Riello Rl70 660T1 3475020, Riello Rl70 660T1 3475021, Riello Rl70 660T1 3475022, Riello Rl70 660Ti 3475023, Riello Rl70/M 669T1 3477012, Riello Rl70/M 669T1 3477013, RLS 100 TYPE 1589D BURNER, RLS 100 TYPE 688 T1 BURNER, RLS 120/M MX TYPE 780 T BURNER, RLS 130 TYPE 19826X BURNER, RLS 130 TYPE 689 TC BURNER, RLS 130 TYPE 689 TL BURNER, RLS 68/M MX 779 T NG&OIL, RLS 70 687 T BURNER NG&OIL, RLS 70 TC230/380/60 NG&OIL, RS 100/E TC3/230-400/50 NG, RS 100/E TL3/230-400/50 NG, RS 100/M TC3/230-400/50 NG, RS 100/M TL3/230-400/50 NG, RS 130/E TC3/230-400/50 NG, RS 130/E TL3/230-400/50 NG, RS 130/M TC3/230-400/50 NG, RS 130/M TL3/230-400/50 NG, RS 150/M TC3/230/50 BURNER NG, RS 150/M TC3/400/50 BURNER NG, RS 150/M TL3/230/50 BURNER NG, RS 150/M TL3/400/50 BURNER NG, RS 64/E MZ 882 T BURNER OIL, RS 64/E MZ 896 T BURNER OIL, RS 64/E MZ TC3/230-400/50 OIL, RS 64/E MZ TL3/230-400/50 OIL, RS 70/E TC3/230-400/50 OIL, RS 70/E TL3/230-400/50 BURNOIL, RS 70/M TC3/230-400/50 BURNOIL, RS 70/M TL3/230-400/50 BURNOIL, Riello Rs100 3785208, Riello Rs100 822M 3785206, Riello Rs100 822M 3785207, Riello Rs100 822T1 3785216, Riello Rs100 822T1 3785217, Riello Rs100 822T1 3785218, Riello Rs103 822M 3785205, Riello Rs103 822T1 3785215, Riello Rs130 823M 3785405, Riello Rs130 823M 3785406, Riello Rs130 823M 3785407, Riello Rs130 823M 3785408, Riello Rs130 823T1 3785415, Riello Rs130 823T1 3785416, Riello Rs130 823T1 3785417, Riello Rs130 823T1 3785418, Riello Rs70 821M 3785005, Riello Rs70 821M 3785006, Riello Rs70 821M 3785008, Riello Rs70 821M 3785037, Riello Rs70 821T1 3785015, Riello Rs70 821T1 3785017, Riello Rs70 821T1 3785018, Riello Rs70 821T1 3785316. Always check the model and serial number on the data plate before ordering.

Does 3003991 have equivalent or superseded part numbers?

The sources we checked list no equivalents for 3003991. Ask a Riello stockist to confirm.

What should I check before fitting 3003991?

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.