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- Porsche 955 Cayenne 3.2L V6 2003-06
Fits:
Porsche 955 Cayenne 3.2L 2006>> (IT31 / I8GR)
* IT31 - Components for basic engine. unit M 022Y
* I8GH - 190-A generator
For vehicles with 12V main current,
Alternator charge current: 150 A,
Number of ribs: 6,
with freewheel belt pulley,
Plug-type ID: L, DFM,
Plug Type: Plug Terminal,
Number of mounting bores: 4
Diagram ref no 6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
95560301610
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
Alternator 12V 75A – Internal Regulator
Restore dependable charging performance with this OEM
Supplier 12V 75A Alternator, equipped with an internal voltage regulator.
Manufactured by an Original Equipment supplier, this alternator is produced to
the same demanding standards as the component originally fitted by Porsche,
providing the quality, reliability and fitment expected from
factory-specification electrical components.
Fits:
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1983 3.3L Turbo (930)
The alternator is one of the most important components of the vehicle's electrical system. While the engine is running, it generates electricity to power essential systems including the ignition, lighting, fuel injection, instruments, heating and ventilation controls, whilst simultaneously recharging the battery. A failing alternator can quickly lead to a discharged battery, poor engine performance and complete electrical failure.
This unit is manufactured for precise fitment and dependable long-term operation, making it an ideal replacement for worn or failed original alternators during routine maintenance or restoration.
What Does the Alternator Do?
The alternator converts mechanical energy from the engine into electrical energy.
Its primary functions include:
- Charging the vehicle battery.
- Supplying electrical power whilst the engine is running.
- Maintaining a stable charging voltage.
- Supporting ignition and fuel systems.
- Powering lighting and electrical accessories.
- Preventing battery discharge during normal driving.
The internal voltage regulator continuously controls the alternator output, ensuring the battery and electrical components receive the correct charging voltage without overcharging.
Why Replace the Alternator?
Alternators are subjected to constant heat, vibration and high rotational speeds throughout their service life.
Common causes of failure include:
- Worn bearings.
- Failed internal voltage regulator.
- Worn brushes.
- Damaged slip rings.
- Internal winding faults.
- Diode pack failure.
- Corrosion.
- Age-related wear.
Replacing a worn alternator restores reliable charging performance and helps prevent unexpected breakdowns.
Symptoms of a Failing Alternator
Common signs include:
- Battery warning light illuminated.
- Battery repeatedly going flat.
- Slow engine cranking.
- Dim or flickering headlights.
- Unstable voltage.
- Electrical accessories operating poorly.
- Intermittent charging.
- Bearing noise from the alternator.
- Burning electrical smell in severe cases.
Ignoring these symptoms can eventually leave the vehicle unable to start once the battery becomes fully discharged.
Important Installation Information
This alternator is suitable for Porsche 911 models (1978-1983) using an internal voltage regulator.
For Porsche 911 turbo 3.0ltr (1975-1977) applications,
the following additional components are required:
- Resistor 91164198100
× 1
- Air Deflector 91110603305
× 1
- Cable Connector 111971511 × 2
Voltage: 12V
Power: 75 Amp.
Direction of rotation: Clockwise (CW)
Attachment: 6 bolts, Radius 135 mm
Controller: internal
Pulley: no
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160312004
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
Fits:
Porsche 911 1978-89
Diagram ref no 18
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91161223300
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
Keep your Porsche's charging system operating reliably with this OE Match Alternator, manufactured as a direct replacement. Produced to OE-style specifications, this alternator is designed to generate electrical power while the engine is running, supplying electricity to the vehicle's electrical systems and maintaining the battery at the correct state of charge.
Fits:
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
The alternator is a vital component that powers everything from the ignition and lighting system to fuel delivery, instrumentation, and charging functions. Over time, internal bearings, brushes, voltage regulation components, or windings can wear through continuous operation, heat, and age, leading to reduced charging performance or complete failure. Replacing a worn alternator restores dependable electrical output and helps ensure reliable starting and operation. This OE Match component is ideal for routine maintenance, electrical system repairs, and Porsche restoration projects.
What This Product Does:
- Generates electrical power while the engine is running.
- Charges the vehicle's battery during operation.
- Supplies power to the ignition and electrical systems.
- Maintains consistent charging voltage.
- Supports reliable engine starting and vehicle operation.
- Replaces worn or failing original alternators.
- Provides an OE-style fit and dependable quality.
Symptoms Of Wear Or Failure:
- Battery warning light illuminated.
- Battery repeatedly losing charge.
- Dim or flickering headlights.
- Electrical accessories operating intermittently.
- Whining, grinding, or bearing noise from the alternator.
- Difficulty starting due to low battery charge.
- Low or inconsistent charging voltage.
- Visible damage or excessive wear to the alternator.
Why Replacement Matters:
- The alternator is responsible for supplying electrical power to the vehicle while simultaneously recharging the battery. A failing alternator can lead to poor charging performance, battery drain, unreliable starting, and the eventual loss of essential electrical systems, potentially leaving the vehicle unable to operate.
- Replacing the alternator restores the correct charging capacity, ensuring dependable electrical performance and protecting the battery from unnecessary strain. Manufactured as a direct replacement and produced to OE-style specifications, this OE Match alternator provides the correct fit, dependable quality, and long-lasting durability, making it an excellent choice for Porsche maintenance, electrical system repairs, and restoration projects.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91160312002
The product you are viewing cross references to these numbers