Description
Original door seal for De'Longhi combined oven | 53179
The original door seal for De'Longhi ovens is made of a glass silk material designed to withstand high temperatures for years.
When the seal is worn, hot air escapes from the baking chamber and cooking becomes uneven.
Replacing with an original part restores the oven to optimal function and maintains the integrity of the device.
De'Longhi Glass Silk Technology: Why It's Important
The door seal of De'Longhi ovens is made of fiberglass., and not from ordinary rubber.
Because of this, it withstands temperatures of up to 300 degrees Celsius and maintains its flexibility for years.
In addition, the four metal clips at the corners of the seal allow for precise fixation to the baking chamber frame.
A non-original gasket, on the other hand, is often made of inferior material that hardens and cracks after a few months.
Click the “Check Model Compatibility” button at the top of the page before ordering.
When the oven doesn't seal properly
A furnace with a worn gasket is revealed by several clear signs.
First, the foods dry out more than usual when baked, because the heat escapes from the baking chamber and is not retained in it.
Second, the kitchen cabinet above the oven gets unusually hot while cooking.
Third, you can feel heat coming out around the door frame when the oven is running.
A simple test to find the problem: Place a sheet of paper between the door and the oven and close it. If the paper pulls out easily, the seal is worn and needs to be replaced.
✅ Why only original?
The original De'Longhi gasket is made of the same glass silk material that the manufacturer specifies for these models.
As a result, it fits exactly to the frame profile, seals completely, and is durable for years.
A non-original part may fit partially, crack quickly, and damage the integrity of the device.
Therefore, it is worth investing in the original part once and solving the problem in the long term.
⚠️ Model Locator Tip
You will find the oven model number on the inner door frame, when the door is fully open.
On some models the sticker is located on the left side of the baking chamber. The model number is essential to verify part compatibility before ordering.
Technical
| attribute | Details |
|---|---|
| Manufacturer's SKU | 53179 |
| brand | De'Longhi |
| Manufacturer description | SEAL |
| material | Heat-resistant fiberglass |
| Fixation | 4 metal clips in the corners |
| התקנה | Self-made, without special tools |
✅ Compatible models
The part fits the following models. Make sure it matches the model number on the sticker:
- NDB-901AN (built-in oven)
- NDS-932AN (combined oven)
- NDS-932W (combined oven)
- NDS-951VN (combined oven)
- NDS-951W (combined oven)
- NDS-952AN (90 cm gas combination oven)
- NDS-979X (combined oven)
⚠️ To check exact compatibility for your model, click the “Check Model Compatibility” button at the top of the page.
Installation instructions
Replacing the door seal is a do-it-yourself operation that most oven owners perform without the need for a technician.
- ⚠️ Disconnect the oven from the power supply before starting the replacement.
- ⚠️ Make sure the oven is completely cold before touching its internal parts.
- Open the door completely and locate the old gasket in the oven opening frame.
- Gently pull one corner of the old gasket and gradually work around the entire frame.
- Clean the frame from the remnants of the old gasket and any accumulated dirt.
- Insert a corner of the new gasket into the appropriate clip and press gently until it snaps into place.
- Work around all four corners until all latches are locked.
- Make sure the gasket lies straight along the entire frame and there are no protruding points.
- Estimated time: 10 minutes
- Tools required: Hands only
💡 Tip from the experts
The official service technicians note that the most common cause of premature gasket wear is the removal of hot molds in a way
Aggressive. When a hot mold forcefully crosses the gasket, it damages the glass fibers and significantly shortens the life of the part.
Therefore, remove molds gently and close the door immediately afterwards. Also, clean the seal with a damp cloth only, without chemical cleaners.
FAQ
How do you know that the gasket in the oven needs replacing?
Common signs are uneven baking, foods that dry out faster than usual, and heat emitted from around the door during operation.
You can test with a paper test: Place a sheet of paper between the door and the frame and close. If the paper pulls out easily, the seal is worn and needs to be replaced.
What causes an oven door seal to wear out quickly?
The most common cause is aggressively removing hot molds, which forcefully cuts through the gasket and damages the fibers of the material.
Additionally, cleaning with harsh substances accelerates gasket wear. Proper maintenance and gentle use extend the life of the original gasket for many years.
Can I replace an oven door seal myself?
Yes, replacement is simple and does not require tools. It is important to make sure the oven is unplugged and completely cold before starting.
Then pull the old gasket from the frame, clean it, and insert the new gasket into the metal clips. The average replacement time is about 10 minutes.
What happens if you don't replace a worn gasket in your oven?
A worn seal causes constant heat loss from the baking chamber.
As a result, cooking becomes uneven, gas consumption increases significantly, and the outgoing heat damages nearby kitchen cabinets over time.
Therefore, it is recommended to replace it as soon as possible and not delay.
Does this gasket fit all Delonghi oven models?
No. The gasket fits specific models listed in the compatible models list on this page.
Before ordering, check the model number on the sticker on the inner door frame.
Verify it against the list, or click “Check Model Compatibility” at the top of the page.
⏱️ Delivery times:
- Most localities: within 10 business days
- Golan Heights, Arava, Eilat and settlements beyond the Green Line: within 10 business days





















