| Weight | 0.02 kg |
| Inner diameter () | 7 |
| Outer diameter () | 11.04 |
| Length (mm) | 45.5 |
| Material | grey cast iron |
| Inner diameter (mm) | 7 |
| Valve type |
|
| Outer diameter (mm) | 11.04 |
| Weight | 0.02 kg |
Expresslevering
| Manufacturer | Model | Version | Engine code | Construction type | Construction start | Construction end | Pk | Power kw |
| Manufacturer | Productnumber |
| Usage numbers |
| G2800 |
| 8 |
| 113E+12 |
The Valve Guide (G2800) controls valve motion and oil metering around the stem. Replacing it with a Porza-quality component restores proper sealing, stable airflow, and efficient combustion.
A valve guide is a cylindrical component installed in the cylinder head that supports and guides the movement of the engine valve. Its function is to ensure precise alignment of the valve as it opens and closes, while also helping to transfer heat from the valve to the cylinder head and control oil consumption.
Key specifications include inner and outer diameter, length, material type, and compatibility with the engine. Valve guides are typically made from cast iron, bronze, or other wear-resistant alloys, designed to withstand high temperatures (often exceeding +200°C), friction, and continuous valve movement. Proper clearance between the valve stem and guide is critical for performance and longevity.
Replacement is necessary when the guide becomes worn or damaged. Common symptoms include excessive oil consumption, blue smoke from the exhaust, reduced engine performance, or valve noise. Valve guides are often replaced during cylinder head overhaul or when reconditioning the valve train.
Porza offers a fit guarantee option where your vehicle or engine details are checked against product specifications. This ensures the valve guide matches the correct dimensions and requirements for your cylinder head.
Porza supplies high-quality engine 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 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.