| Inner diameter () | 20.9 |
| Material | fpm (fluoride rubber) |
| Thickness (mm) | 3 |
| Shape | o-ring |
| Cross-sectional form sealing ring | o-ring |
| Goods tariff number | 3926904510 |
| Outer diameter (mm) | 26.9 |
Expresslevering
| Manufacturer | Model | Version | Engine code | Construction type | Construction start | Construction end | Pk | Power kw |
| FREIGHTLINER | ||||||||
| SETRA | ||||||||
| western star |
| Manufacturer | Productnumber |
| MERCEDES-BENZ | 017 997 33 45 , 0179973345 |
| MERCEDES-BENZ | 021 997 62 48 , 0219976248 |
| MERCEDES-BENZ | 541 997 05 45 , 5419970545 |
| MERCEDES-BENZ | A 017 997 33 45 , A0179973345 |
| MERCEDES-BENZ | A 021 997 62 48 , A0219976248 |
| MERCEDES-BENZ | A 541 997 05 45 , A5419970545 |
| IVECO | 4890926 |
| MAN | 51.96501-0502 , 51965010502 |
| MAN | 51.96501-0699 , 51965010699 |
| PORSCHE | 996 105 901 03 , 99610590103 |
| MAGIRUS-DEUTZ | 0211 1984 , 02111984 |
| DEUTZ | 0211 1984 , 02111984 |
| FENDT | F716200710050 |
| Usage numbers |
| EL000230 |
| 000.230 |
| 4 |
| 04125E+12 |
The Gasket, cylinder head closing screw (000.230) creates a pressure-tight seal between critical mechanical components. Replacing it with a Porza-quality seal ring restores leak-free operation and long-term system reliability.
A gasket for a cylinder head closing screw is a small sealing component placed under or around a closing screw in the cylinder head. Its function is to create a leak-tight seal, preventing oil, coolant, or combustion gases from escaping through the screw connection while maintaining proper pressure within the engine.
Key specifications include inner and outer diameter, thickness, and material type. These gaskets are typically made from heat- and fluid-resistant materials such as copper, aluminum, or specialized sealing compounds. They must withstand high temperatures, pressure, and exposure to engine fluids, often exceeding +150°C.
Replacement is recommended whenever the screw is removed or during engine service, especially if there are signs of leakage, deformation, or wear. Reusing an old gasket can lead to leaks and reduced sealing performance.
Porza offers a fit guarantee option where your vehicle or engine details are checked against product specifications. This ensures the gasket matches the correct size and sealing requirements for your cylinder head application.
Porza supplies high-quality sealing components with fast delivery across Europe. Customers can order online or choose in-store pickup in the Netherlands, Germany, or Belgium. This ensures quick access to essential engine parts for both professional workshops and individual users.
If you select the fit guarantee, Porza verifies compatibility before shipment. If the product does not fit or meet expectations, it can be returned according to the return policy. This ensures a reliable and risk-free purchasing experience.