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Alternator / Generator
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005

Reconditioned Alternator Manual cars only
Please note:
Reconditioned Alternators are sold on an exchange basis, A surcharge of £100.00 will be held and then refunded when the old one is returned.
Fits:
Porsche 986 Boxster 2000-2002 Manual
Porsche 996 2000>> Manual
Reconditioned Alternators are sold on an exchange basis, A surcharge of £100.00 will be held and then refunded when the old one is returned.
- PLEASE NOTE:
- The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
- Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
- Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
- All surcharges and exchanges are subject to our terms and conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660301206
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005

Reconditioned Alternators are sold on an exchange basis, A surcharge of £100.00 will be held and then refunded when the old one is returned.
Fits:
Porsche 986 Boxster 1997-1999 Manual
Porsche 986 Boxster 1997-2002 Tiptronic
Porsche 996 1998-1999 Manual
Porsche 996 1998-2005 Tiptronic
Reconditioned Alternators are sold on an exchange basis, A surcharge of £100.00 will be held and then refunded when the old one is returned.
PLEASE NOTE:
- The surcharge for this reconditioned part will be refunded when the exchange unit is received and approved by us and the relevant manufacturer.
- Please note, surcharge refunds often take an average of 6 to 8 weeks to be approved by the manufacturer.
- Acceptance of the exchange part is at the manufacturer's discretion, based on the part being fit for reconditioning.
- All surcharges and exchanges are subject to our terms and conditions.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660301205
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Fits:
Porsche 986 Boxster 2000-2002 Manual
Porsche 996 2000>> Manual
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660301206
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Fits:
Porsche 986 Boxster 2000-2002 Manual
Porsche 996 2000>> Manual
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660301206
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Fits:
Porsche 986 Boxster 1997-1999 Manual
Porsche 986 Boxster 1997-2002 Tiptronic
Porsche 996 1998-1999 Manual
Porsche 996 1998-2005 Tiptronic
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660301205
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
Porsche 986 Boxster 1997-2002 Tiptronic
Porsche 996 1998-1999 Manual
Porsche 996 1998-2005 Tiptronic
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99660301205
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 928S4 5.0L 1987-92
Fits:
Porsche 986 Boxster 2.5L / 2.7L / S 3.2L 1997-04
Porsche 996 (911) 3.4L / 3.6L Carrera 1998-04
Porsche 996 (911) 3.6L GT3
Porsche 996 (911) 3.6L Turbo / GT2
Porsche 955 Cayenne 3.2L 2003-06
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
00004320637
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 955 Cayenne 3.2L V6 2003-06
- Porsche 928S4 5.0L 1987-92
Hella ref no: 5DR 009 728-531
Fits:
Porsche 986 Boxster 2.5L / 2.7L / S 3.2L 1997-04
Porsche 996 (911) 3.4L / 3.6L Carrera 1998-04
Porsche 996 (911) 3.6L GT3
Porsche 996 (911) 3.6L Turbo / GT2
Porsche 955 Cayenne 3.2L 2003-06
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
00004320637
The product you are viewing cross references to these numbers
High-Performance Alternators & Generators for Reliable Engine Charging
Alternators and generators are the core components of your vehicle’s charging system, responsible for supplying electrical power to onboard systems and maintaining battery charge while the engine is running. These vital units convert mechanical energy into electrical output, ensuring stable voltage for lighting, ignition, fuel systems, climate control and all electronic features.
Whether maintaining a daily-driven vehicle, upgrading a performance build, or restoring a classic model, choosing a dependable alternator or generator is essential for consistent electrical reliability.
What Alternators & Generators Do
These components perform several key electrical functions:
- Generate
electrical power to run the vehicle’s systems
- Maintain the battery at optimal charge levels
- Provide
stable voltage output to prevent electrical fluctuations
- Support modern electronics and high-demand accessories
- Ensure reliable ignition and fuel injection performance
A properly functioning alternator or generator is crucial for both efficiency and long-term engine health.
Why Alternators & Generators Commonly Fail
Because these components operate continuously and handle
high electrical loads, they are prone to wear over time.
Typical causes of
failure include:
- Worn
bearings leading to noise or rotor drag
- Brush
and slip ring wear reducing electrical output
- Voltage
regulator malfunction causing erratic charging
- Heat
damage degrading internal components
- Diode
or rectifier failure resulting in charging loss
- Contamination
from oil, debris or moisture
- Belt misalignment or slippage reducing output efficiency
Failure often presents as dim headlights, battery warning lights, weak starting, stalling, or fluctuating voltage.
Why You Should Replace a Failing Alternator or Generator
A failing charging unit can quickly escalate into major
electrical issues, leaving you stranded or damaging sensitive electronics.
Replacing it with a high-quality, precision-built alternative engineered to
match original performance standards ensures:
- Restored charging stability
- Dependable battery maintenance
- Consistent voltage supply for all electrical systems
- Enhanced reliability during high-demand driving
- Improved durability and thermal performance
Whether opting for a direct-fit replacement or a performance-rated upgrade, a new unit safeguards both the vehicle’s electrical system and its engine management components.