Alternator fan / impeller housing strap, in Titanium. Porsche 911 / 914 / 964  ❭  96410625120T

Alternator fan / impeller housing strap, in TITANIUM.
The alternator fan / impeller housing strap secures the cooling fan assembly to the engine structure, keeping it correctly positioned and stable during engine run-up, vibration, and thermal cycling. 

Fits:
Porsche 911 1965 - 1989
Porsche 911 (930) Turbo 1975 - 1989
Porsche 964 Turbo 3.3L / Turbo 3.6L 1991 - 1994
Porsche 914-6 1970 - 1976

Diagram ref no 2

The fan/impeller housing is a critical component of the air-cooled Porsche engine’s cooling system - ensuring airflow over the heads and cylinders - so a secure mounting strap helps maintain proper belt tension, consistent fan alignment, and dependable cooling performance.

Installed between the fan housing and its anchor point on the engine case or accessories bracket, this strap absorbs and distributes load from the fan’s rotational forces, engine vibration, and belt tension. The use of titanium dramatically improves resistance to fatigue and stress versus stock steel, helping reduce the chance of strap deformation or failure over time while contributing to overall engine compartment weight reduction.

 The strap’s titanium alloy also provides higher corrosion resistance - especially beneficial for cars operated in damp or coastal environments where galvanic corrosion can affect standard hardware.

The stock steel fan strap experiences continuous load from belt tension, fan rotation, and thermal expansion. Over time, steel straps can stretch, fatigue, or crack, affecting fan alignment and potentially leading to belt slippage, reduced cooling airflow, or accelerated wear on pulleys. Upgrading to a titanium strap improves structural integrity, reduces recurring maintenance, and enhances the overall robustness of the cooling system - particularly in performance or high-stress driving environments.

When to replace:
• Original strap shows corrosion, cracks, or deformation
•  During fan or alternator service
•  As part of engine rebuild or restoration project
•  Upgrading to performance materials for enhanced durability
•  When reducing rotating mass and engine compartment weight

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96410625120T

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