| Height () | 158 |
| No. of fan blades | 11 |
| Heating/cooling |
|
| Connector shape | rectangular |
| Number of mounting bores | 6 |
| Number of threaded holes | 6 |
| Flange Ø (mm) | 138 |
| Operating mode | electronic |
| Thread size | m8 |
| Bore Ø (mm) | 9 |
| Number of pins (-polig) | 5 |
| Number of pins () | 5 |
| Outer diameter () | 720 |
| Bolt hole circle Ø, hub (mm) | 200 |
| Outer diameter (mm) | 720 |
Expresslevering
| Manufacturer | Model | Version | Engine code | Construction type | Construction start | Construction end | Pk | Power kw |
| Usage numbers |
| NRF 49006 |
| 49006 |
| 8172042131935 |
| 8718042131935 |
A clutch for a radiator fan, also known as a fan clutch, is a component that controls the engagement of the engine-driven cooling fan. Its function is to regulate fan speed based on engine temperature, improving cooling efficiency and reducing unnecessary power consumption.
Key specifications include mounting type, diameter, engagement mechanism (thermal or viscous), rotation direction, and compatibility with the vehicle. It must operate reliably under high temperatures and engine loads.
Replacement is necessary when the clutch fails to engage or disengage properly. Common symptoms include overheating, excessive fan noise, reduced engine efficiency, or the fan spinning freely when it should not.
Porza offers a fit guarantee option where your vehicle details are checked against product specifications to ensure correct compatibility.
Porza provides high-quality cooling system components with fast delivery across Europe and options for online ordering or in-store pickup.
If the fit guarantee is selected, compatibility is verified before shipping. If the product does not fit, it can be returned according to the return policy.