Alternator fan pulley. Porsche 911 1975-89  ❭  93010620902

Alternator Fan Pulley For Cars *WITHOUT AIR INJECTION*

The OE Match Alternator Fan Pulley is a high-quality replacement engine component designed for Porsche models equipped without an air injection system. Manufactured to OE specifications for fit, balance and durability, this pulley forms a critical part of the engine cooling and charging system drive assembly.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1984-1986 3.2L
• Porsche 911 1987-1989 3.2L G50
• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)  

Diagram Ref No 8

Mounted within the alternator and cooling fan drive system, the pulley transfers rotational force from the engine belt to drive the alternator and engine cooling fan. Correct pulley operation ensures efficient charging system performance while maintaining the airflow required to cool the engine. Precision manufacturing helps provide smooth operation, accurate belt alignment and reliable long-term performance.

What This Product Does:

• Transfers engine drive power to the alternator and cooling fan assembly.
• Maintains correct cooling fan operating speed.
• Supports efficient engine cooling.
• Enables proper alternator operation and battery charging.
• Ensures accurate drive belt alignment.
• Helps minimise belt wear and slippage.
• Contributes to reliable engine and electrical system performance.

Symptoms Of Wear Or Failure:

• Squealing or chirping noises from the engine bay.
• Drive belt slippage.
• Excessive belt wear.
• Charging system performance issues.
• Battery warning light illumination.
• Reduced engine cooling efficiency.
• Visible pulley wear, cracking or damage.
• Pulley wobble or misalignment.
• Vibration from the alternator or fan assembly.
• Belt throwing or repeated belt failures.

Why Replacement Matters:

• Alternator fan pulleys are subjected to constant rotational loads, engine vibration, belt tension and temperature fluctuations. Over time, pulley surfaces can wear, become damaged or develop alignment issues that affect belt operation and drive system efficiency.
• A worn pulley can lead to belt slippage, reduced alternator output and inadequate cooling fan performance. If left unresolved, this may result in battery charging problems, overheating risks, accelerated belt wear and potential damage to related drive system components. In severe cases, pulley failure can cause complete loss of alternator and cooling fan operation.
• Replacing a worn alternator fan pulley restores proper belt alignment, reliable power transmission and efficient cooling system performance. An OE Match replacement provides factory-style fitment, precise engineering and dependable durability, helping maintain the performance and reliability of your Porsche engine and charging system.

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93010620902

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