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cover plate Genuine Porsche part 96410603620

Code: 96410603620

Genuine Porsche part

cover plate

The product code 96410603620 was also found on these diagrams

105-07 - cover plate

air duct 964 TURB M30.69 and M64.50 1991-94

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

Before purchasing thoroughly check part to confirm compatibility.

Related products

Engine cover, Rear. Porsche 964 1989-94

96410601402/1

Product Information

Engine cover, Rear. Painted aluminized steel.
Mounted at the rear of the engine bay, the cover helps protect the engine from dirt, debris, and road contamination while supporting proper airflow management. It is supplied ready for installation and aligns with factory fixing points, making it suitable for repairs, replacements, or restoration work.

Fits:
Porsche 964 C2 / C4 / RS 1989-94 (not Turbo)

Diagram ref no 13.

The rear engine cover acts as a protective barrier within the engine bay, helping to keep contaminants away from critical engine components and contributing to correct engine bay airflow and thermal management.

Function:
• Protects rear engine components from dirt and debris
• Helps maintain correct airflow through the engine bay
• Provides structural coverage with heat- and corrosion-resistant material
• Restores factory-style appearance in the engine compartment

Damaged, corroded, or missing engine covers can expose components to debris and moisture, potentially accelerating wear and corrosion. Replacing the cover restores proper protection, appearance, and engine bay integrity.

When to replace:
• Visible corrosion, cracking, or deformation
• Missing or damaged mounting points
• After engine or rear-end repairs
• During engine bay restoration or refurbishment

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Related, superseded, cross reference or alternative numbers for comparison.

96410601402

96410601402

The product you are viewing cross references to these numbers

4 4 4 4

Alternator bearing fan blade. Porsche 964 / 993

96410605131/1

Product Information

Alternator Fan Bearing

Maintain the reliability of your Porsche's charging and engine cooling systems with this OE Match Alternator Fan Bearing, suitable for Porsche 964 and Porsche 993 models. This precision-engineered bearing supports the alternator and engine cooling fan assembly, ensuring smooth operation while allowing the cooling fan to rotate efficiently at high engine speeds.

Fits:

Porsche 964 (911) C2 1989-93
Porsche 964 (911) C4 1989-93
Porsche 964 (911) TURBO 3.3L 1991-93
Porsche 964 (911) TURBO 3.6L 1991-93
Porsche 993 (911) C2 1994-97
Porsche 993 (911) C4 1994-97
Porsche 993 (911) C2S 1994-97
Porsche 993 (911) C4S 1994-97
Porsche 993 (911) TURBO 1994-96
Porsche 993 (911) GT2 1994-97
Porsche 993 (911) TURBO S 1994-97

Diagram ref no 25

On air-cooled Porsche engines, the engine cooling fan is one of the most critical components for temperature control. The alternator fan bearing allows the fan and alternator assembly to rotate freely while supporting the loads generated by the fan belt and engine speed. A worn or failing bearing can lead to excessive noise, reduced cooling efficiency and, in severe cases, catastrophic damage to the fan and alternator assembly.

Manufactured to OE Match standards, this replacement bearing is ideal for preventative maintenance, engine rebuilds and alternator refurbishment projects.

What Does the Alternator Fan Bearing Do?

The alternator fan bearing is located within the alternator and cooling fan assembly.

Its primary functions include:

Supporting the alternator shaft
Allowing smooth fan rotation
Maintaining fan alignment
Reducing friction within the assembly
Supporting high engine speed operation
Ensuring efficient engine cooling
Helping maintain charging system reliability

Because the engine cooling fan is directly driven by the crankshaft belt system, the bearing operates continuously whenever the engine is running.

Why Do Alternator Fan Bearings Fail?

Over time, bearings are subjected to significant mechanical loads and temperature fluctuations.

Common causes of failure include:

Age-related wear
High mileage operation
Heat cycling
Bearing grease degradation
Contamination from dust and debris
Excessive belt tension
Corrosion
Long-term vibration

As the bearing wears, internal clearances increase and smooth operation deteriorates.

Symptoms of a Worn Alternator Fan Bearing

Common warning signs include:

Whining or rumbling noises from the fan housing
Grinding sounds from the alternator area
Fan vibration
Excessive shaft play
Reduced cooling fan efficiency
Alternator noise
Difficulty maintaining charging performance
Visible bearing wear during inspection

Ignoring these symptoms can eventually result in bearing seizure and costly component damage.

When Should the Alternator Fan Bearing Be Replaced?

Replacement is recommended when:

Rebuilding the alternator
Refurbishing the cooling fan assembly
Engine-out servicing is being carried out
Bearing noise is present
Excessive shaft play is detected
Performing preventative maintenance
Completing an engine rebuild
Restoring a Porsche 964 or 993

Many Porsche specialists replace the bearing whenever the alternator assembly is removed for major servicing.

Why Replacement Matters

Replacing a worn fan bearing helps protect both the engine cooling system and charging system.

Benefits include:

Smooth fan operation
Improved cooling system reliability
Reduced noise
Improved alternator performance
Protection against costly failures
Better engine temperature management
Long-term durability Enhanced reliability

For air-cooled Porsche engines, maintaining the cooling fan assembly is essential for engine longevity.

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

96410605131

96410605130

96410605131

1265

The product you are viewing cross references to these numbers

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cover plate Genuine Porsche part 96410603620