Saunier Duval 20203978 Boiler Elbow Connection Pipe Fitting | Genuine Replacement Spare
- SKU
- EDDSAUNIER04
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Can’t find what you’re looking for? Click here to use our spare part finder.Saunier Duval 20203978 Boiler Elbow Connection Pipe Fitting – Genuine Replacement Spare
The Saunier Duval 20203978 is a genuine boiler elbow fitting designed to provide a secure directional connection within the internal pipework of Saunier Duval condensing boilers. This component allows fluid or gas pathways to change direction efficiently while maintaining a sealed and stable connection under operating pressure.
Elbow fittings are critical within modern boiler systems, where compact internal layouts require precise routing of water, condensate, or combustion-related flows. The 20203978 elbow is manufactured to exact OEM tolerances, ensuring a perfect fit within the appliance and maintaining the integrity of the system it serves.
During operation, internal pipework is subjected to constant temperature fluctuations, pressure changes, and vibration. Over time, these conditions can cause fittings to weaken, seals to degrade, or connections to loosen. A compromised elbow can lead to leaks, pressure loss, or reduced system efficiency, and in some cases may contribute to fault codes or operational instability.
Replacing a worn or damaged elbow with a genuine Saunier Duval part ensures the system remains properly sealed and continues to operate as designed. It is particularly important when carrying out repairs or replacing adjacent components, where disturbance of existing pipework may affect sealing performance.
Key Features:
Part Number: 20203978
Type: Boiler elbow / pipe connector fitting
Function: Directs flow and maintains sealed connection within internal pipework
Genuine Saunier Duval spare part – manufactured to OEM specification
Designed for durability under heat and pressure
Precision fit for reliable, leak-free installation
Must be fitted by a Gas Safe registered engineer
Compatible Boilers Include:
Used across a range of Saunier Duval condensing boiler models, including:
Saunier Duval Micra Condensing range
Saunier Duval Thema Condens and Themafast Condens boilers
Saunier Duval Thesi Condensing range
Saunier Duval Isotwin Condens models
Saunier Duval Spazio and Eura condensing boilers
Compatibility varies depending on model variant and production batch.
Always confirm suitability using the appliance data plate and official parts diagram before ordering. If unsure, consult Saunier Duval technical support.
Saunier Duval provide a 1 year warranty on all spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | 20203978 |
|---|---|
| Product Code | EDDSAUNIER04 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Saunier Duval |
| Full Weight (kG) | 0.5 |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
Saunier Duval 20203978 Boiler Elbow Connection Pipe Fitting – Genuine Replacement Spare
The Saunier Duval 20203978 is a genuine boiler elbow fitting designed to provide a secure directional connection within the internal pipework of Saunier Duval condensing boilers. This component allows fluid or gas pathways to change direction efficiently while maintaining a sealed and stable connection under operating pressure.
Elbow fittings are critical within modern boiler systems, where compact internal layouts require precise routing of water, condensate, or combustion-related flows. The 20203978 elbow is manufactured to exact OEM tolerances, ensuring a perfect fit within the appliance and maintaining the integrity of the system it serves.
During operation, internal pipework is subjected to constant temperature fluctuations, pressure changes, and vibration. Over time, these conditions can cause fittings to weaken, seals to degrade, or connections to loosen. A compromised elbow can lead to leaks, pressure loss, or reduced system efficiency, and in some cases may contribute to fault codes or operational instability.
Replacing a worn or damaged elbow with a genuine Saunier Duval part ensures the system remains properly sealed and continues to operate as designed. It is particularly important when carrying out repairs or replacing adjacent components, where disturbance of existing pipework may affect sealing performance.
Key Features:
Part Number: 20203978
Type: Boiler elbow / pipe connector fitting
Function: Directs flow and maintains sealed connection within internal pipework
Genuine Saunier Duval spare part – manufactured to OEM specification
Designed for durability under heat and pressure
Precision fit for reliable, leak-free installation
Must be fitted by a Gas Safe registered engineer
Compatible Boilers Include:
Used across a range of Saunier Duval condensing boiler models, including:
Saunier Duval Micra Condensing range
Saunier Duval Thema Condens and Themafast Condens boilers
Saunier Duval Thesi Condensing range
Saunier Duval Isotwin Condens models
Saunier Duval Spazio and Eura condensing boilers
Compatibility varies depending on model variant and production batch.
Always confirm suitability using the appliance data plate and official parts diagram before ordering. If unsure, consult Saunier Duval technical support.
Saunier Duval provide a 1 year warranty on all spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
| MPN | 20203978 |
|---|---|
| Product Code | EDDSAUNIER04 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Saunier Duval |
| Full Weight (kG) | 0.5 |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
