| Inner diameter () | 269 |
| Material | nbr (nitrile butadiene rubber) |
| Fitting position | front axle |
| Thickness (mm) | 6 |
| Shape | o-ring |
| Net weight (g) | 30 |
| Guarantee | 2 years guarantee |
Expresslevering
| Manufacturer | Model | Version | Engine code | Construction type | Construction start | Construction end | Pk | Power kw |
| Manufacturer | Productnumber |
| MERCEDES-BENZ | 494 334 0059 , 4943340059 |
| MERCEDES-BENZ | A494 334 0059 , A4943340059 |
| MAN | 06.56341.3271 , 06563413271 |
| Usage numbers |
| 420.393 |
| 4 |
| 04776E+12 |
| 4.20393 |
A sealing ring for a wheel hub with a planetary gearbox is a sealing component used to prevent the leakage of lubricant and the ingress of dirt, water, and debris. Its function is to protect the internal gears and bearings of the planetary gearbox, ensuring proper lubrication and long service life.
Key specifications include inner and outer diameter, thickness, material type (such as rubber, NBR, or PTFE), and compatibility with the specific wheel hub and gearbox design. The sealing ring must withstand high loads, rotational speeds, and environmental conditions, with temperature resistance typically ranging from -40°C to +150°C or higher depending on the application.
Replacement is necessary when the seal is worn, hardened, cracked, or leaking. Common signs include lubricant leakage, contamination inside the hub, or unusual noise from the gearbox. It is also recommended to replace the sealing ring during maintenance or when servicing the hub assembly.
Porza offers a fit guarantee option where your vehicle or technical details are checked against product specifications. This ensures the sealing ring matches the correct dimensions and requirements for your wheel hub planetary gearbox.
Porza supplies high-quality sealing and drivetrain 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 maintenance 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.