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Fan housing alternator. Porsche 911 RSR / 906 › 90110610300
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
This aluminium moulded housing replaces the original shroud that encloses the alternator and cooling fan on Porsche 906 and 911 RSR racing engines. It is cast from aluminium moulding, with dimensions and mounting points aligned to the factory reference (225 mm diameter).
Fits:
Porsche 911 RSR / 906
Constructed with durability and accuracy in mind, this replacement fits applications where original fan housings are worn, cracked or missing — particularly on air-cooled Porsche competition engines. It offers a direct-fit solution, restoring proper belt alignment, fan clearance and cooling airflow geometry.
• Porsche reference number: 901.106.103.00R , 90110610300
• Material: Aluminium-moulding
• Weight: 1850g
• Diameter: 225 mm
• Manufactured to original specification
The fan/alternator housing is a critical component: it locates the alternator, supports the cooling fan and defines the airflow path through the air-cooled engine. In motorsport or restored engines it is exposed to extreme heat, vibration and airflow loads. Over time the original housing may become warped, cracked, or suffer corrosion — which can lead to belt misalignment, fan rub, reduced cooling efficiency or even engine damage.
Replace this housing when:
• The existing housing shows cracks, distortion or corrosion
• There is belt misalignment, fan contact or excessive vibration
• You are performing an engine rebuild, conversion or restoration of a 906 / 911 RSR
• Cooling airflow is compromised or the cooling fan is physically contacting the housing
Fitting a new housing restores original alignment, clears fan clearance issues, improves belt life and ensures your Porsche engine’s cooling system functions as designed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90110610300
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