Ariston
Ariston Gasket Return Group 990363
Return group gasket for Ariston ACO and UNO gas boilers, sealing the hydraulic circuit joint.
At a glance
- Also known as GASKET-RETOURN-GROUP, 1575902
£6.56
£5.47 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Ariston 990363 is a return group gasket for Ariston ACO and UNO gas boilers. It seals the joint at the return group, preventing water loss from the connection. It is a service component for the boiler's hydraulic circuit.
Signs this part needs replacing
- Water weeping or dripping from the return group joint
- Visible hardening, cracking or flattening of the gasket
- Scale or corrosion staining around the return connection
- Falling system pressure that needs regular topping up
- Damp patches or residue beneath the boiler
Before you order
- Confirm your boiler model and GC number against the fitment list above
- Check the part number 990363 matches the gasket removed
- Isolate the appliance and drain down before removing the return group
- Inspect the mating faces for damage or debris before fitting the new gasket
Compliance
| Barcode / EAN | 5411692440459 |
|---|---|
| Alternative numbers | GASKET-RETOURN-GROUP, 1575902 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| ARISTON ACO 27 MFFI GPL | 47-116-34 | 47-116-34 | — | — |
| ARISTON ACO 27 MFFI MET | 47-116-34 | 47-116-34 | — | — |
| ARISTON ACO 27 RFFI SYSTEM GPL | 41-116-09 | 41-116-09 | — | — |
| ARISTON ACO 27 RFFI SYSTEM MET | 41-116-09 | 41-116-09 | — | — |
| ARISTON ACO 32 MFFI GPL | 47-116-35 | 47-116-35 | — | — |
| ARISTON ACO 32 MFFI MET | 47-116-35 | 47-116-35 | — | — |
| ARISTON ACO 32 RFFI SYSTEM GPL | 41-116-10 | 41-116-10 | — | — |
| ARISTON ACO 32 RFFI SYSTEM MET | 41-116-10 | 41-116-10 | — | — |
| ARISTON ARISTON ACO 27 MFFI | — | — | — | |
| ARISTON ARISTON ACO 27 RFFI SYSTEM | — | — | — |
Showing 10 of 14 compatible appliances.
Documents & drawings
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