pulley Genuine Porsche part 94860313501

Alternator pulley.
Fits:
Porsche 955 Cayenne S 4.L 2003-06
Porsche 955 Cayenne Turbo 4.5L 2003-06
Porsche 957 Cayenne 4.8L V8 2007-10
Porsche 957 Cayenne 4.8L Turbo 2007-10
Porsche 970 Panamera S / GTS / TURBO 2010-13
Diagram ref no 7

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94860312501

The product you are viewing cross references to these numbers

Alternator Pulley.

The OE Match Alternator Pulley is a replacement pulley designed for selected Porsche Cayenne and Panamera models.

Fits:

• Porsche 955 Cayenne S 4.L 2003-06
• Porsche 955 Cayenne Turbo 4.5L 2003-06
• Porsche 957 Cayenne 4.8L V8 2007-10
• Porsche 957 Cayenne 4.8L Turbo 2007-10
• Porsche 970 Panamera S / GTS / TURBO 2010-13

Diagram Ref No 7

Mounted to the alternator shaft, the pulley allows the auxiliary drive belt to transfer rotational power from the engine to the alternator. As the engine runs, the pulley rotates the alternator so it can generate electrical power for the vehicle and maintain battery charge.

The pulley must remain correctly aligned with the auxiliary belt and surrounding drive components. Wear, physical damage, corrosion or incorrect alignment can cause belt noise, vibration and reduced drive efficiency, potentially affecting alternator performance and other components within the auxiliary belt system.
What This Product Does:
The alternator pulley forms the mechanical connection between the engine's auxiliary drive belt and the alternator.

Its functions include:

• Transferring rotational drive from the engine to the alternator.
• Allowing the alternator to operate whenever the engine is running.
• Supporting correct battery charging.
• Helping power the vehicle's electrical systems.
• Maintaining the correct drive-belt path.
• Supporting consistent belt alignment.
• Providing a smooth rotational surface for the auxiliary belt.
• Helping maintain efficient power transfer through the accessory-drive system.
• Replacing a worn, corroded or damaged original pulley.
• Supporting correct alternator operation after drive-system repairs.

Without reliable mechanical drive from the belt, the alternator cannot produce the electrical output required by the vehicle.
Symptoms Of Wear Or Failure:
Possible symptoms include:

• Squealing from the auxiliary drive belt.
• Chirping noises from the belt area.
• Abnormal rattling or mechanical noise around the alternator.
• Visible pulley damage.
• Excessive corrosion.
• Pulley wobble while the engine is running.
• Belt running out of alignment.
• Uneven belt wear.
• Fraying along the belt edges.
• Belt slipping.
• Excessive vibration in the auxiliary drive.
• Premature belt tensioner wear.
• Premature idler pulley wear.
• Battery warning light illuminating.
• Reduced charging-system output.
• Battery repeatedly becoming discharged.
• Vehicle electrical systems behaving unpredictably due to low system voltage.
• Complete loss of alternator drive in severe cases.

These symptoms can also result from a worn drive belt, tensioner, alternator bearings, idler pulley or electrical charging fault, so the complete system should be inspected during diagnosis.
Why Replacement Matters:
The alternator pulley operates continuously whenever the engine is running.

It is subjected to:

• High rotational speed.
• Constant belt tension.
• Engine vibration.
• Repeated acceleration and deceleration.
• Engine-bay temperatures.
• Long-term mechanical wear.

If its condition deteriorates, the auxiliary belt may no longer run smoothly or remain correctly aligned.

Replacing a worn pulley helps restore:

• Correct alternator drive.
• Consistent belt alignment.
• Efficient rotational power transfer.
• Reliable battery charging.
• Smooth auxiliary-drive operation.
• Reduced belt noise.
• Reduced risk of premature belt wear.
• Reliable operation of the vehicle's electrical system.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94860312501

The product you are viewing cross references to these numbers

Alternator Pulley.
The Genuine Porsche Alternator Pulley is an original equipment auxiliary drive component designed to transfer power from the engine drive belt to the alternator on compatible Porsche models. Manufactured to Porsche's exact specifications for fit, balance and durability, this precision-engineered pulley ensures efficient alternator operation, enabling reliable battery charging while supporting the performance of the vehicle's electrical system.  
Fits:

• Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
• Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13  

Diagram Ref No 7
Manufactured from high-strength precision-machined steel with a durable corrosion-resistant finish, the alternator pulley is engineered to withstand continuous high-speed rotation, engine vibration and demanding operating temperatures. Designed to maintain accurate belt alignment and optimum drive efficiency, it provides direct replacement fitment and seamless integration with the factory auxiliary drive system, making it ideal during alternator servicing or drive belt replacement.  
What This Product Does:

• Transfers engine power to the alternator via the auxiliary drive belt.
• Maintains correct alternator operating speed.
• Ensures efficient battery charging.
• Supports the operation of the vehicle's electrical systems.
• Maintains proper drive belt alignment.
• Helps reduce belt slip and unnecessary drive system wear.
• Restores factory auxiliary drive performance.
• Forms an essential part of the engine accessory drive system.

Symptoms Of Wear Or Failure:

• Squealing or chirping noises from the auxiliary drive belt.
• Battery warning light illuminated.
• Reduced charging system performance.
• Drive belt slipping or excessive wear.
• Visible pulley wear, corrosion or damage.
• Belt misalignment.
• Vibration from the auxiliary drive system.
• Alternator not charging correctly.
• Premature drive belt or tensioner wear.
• Complete loss of alternator drive if the pulley fails.

Why Replacement Matters:

• The alternator pulley operates continuously whenever the engine is running and is subjected to high rotational speeds, constant belt tension, vibration and changing engine loads. Over time, the pulley can wear, corrode or become damaged, affecting belt alignment and reducing the efficiency of the auxiliary drive system.
• A worn or damaged pulley can cause belt noise, premature belt and tensioner wear, charging system faults and reduced alternator performance. If left unresolved, pulley failure can lead to complete loss of alternator drive, resulting in battery discharge and potential vehicle breakdown.
• Replacing a worn or damaged pulley with a Genuine Porsche Alternator Pulley restores smooth, reliable auxiliary drive operation and efficient battery charging. Manufactured to Porsche's exact engineering standards, it provides factory-correct fitment, exceptional durability and dependable long-term reliability, helping maintain the performance, efficiency and reliability expected from your Porsche.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94860313501

The product you are viewing cross references to these numbers

Alternator Pulley.
The OE MATCH Alternator Pulley is a auxiliary drive component designed to transfer power from the engine drive belt to the alternator on compatible Porsche models. This precision-engineered pulley ensures efficient alternator operation, enabling reliable battery charging while supporting the performance of the vehicle's electrical system.  
Fits:

• Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
• Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13  

Diagram Ref No 7
The alternator pulley is engineered to withstand continuous high-speed rotation, engine vibration and demanding operating temperatures. Designed to maintain accurate belt alignment and optimum drive efficiency, it provides replacement fitment and seamless integration with the auxiliary drive system, making it ideal during alternator servicing or drive belt replacement.  
What This Product Does:

• Transfers engine power to the alternator via the auxiliary drive belt.
• Maintains correct alternator operating speed.
• Ensures efficient battery charging.
• Supports the operation of the vehicle's electrical systems.
• Maintains proper drive belt alignment.
• Helps reduce belt slip and unnecessary drive system wear.
• Forms an essential part of the engine accessory drive system.

Symptoms Of Wear Or Failure:

• Squealing or chirping noises from the auxiliary drive belt.
• Battery warning light illuminated.
• Reduced charging system performance.
• Drive belt slipping or excessive wear.
• Visible pulley wear, corrosion or damage.
• Belt misalignment.
• Vibration from the auxiliary drive system.
• Alternator not charging correctly.
• Premature drive belt or tensioner wear.
• Complete loss of alternator drive if the pulley fails.

Why Replacement Matters:

• The alternator pulley operates continuously whenever the engine is running and is subjected to high rotational speeds, constant belt tension, vibration and changing engine loads. Over time, the pulley can wear, corrode or become damaged, affecting belt alignment and reducing the efficiency of the auxiliary drive system.
• A worn or damaged pulley can cause belt noise, premature belt and tensioner wear, charging system faults and reduced alternator performance. If left unresolved, pulley failure can lead to complete loss of alternator drive, resulting in battery discharge and potential vehicle breakdown.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

94860313501

The product you are viewing cross references to these numbers