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- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Please Note: Only to be used with 6v to 12v conversion kits 35660310100/1 and 35660310601/1
Fits:
Porsche 356A - 1955 to 1959
Porsche 356B - 1959 to 1963
Porsche 356C - 1963 to 1965
Porsche 912 - 1967 to 1968
The alternator supplies 12 volt electrical power at approximately 55 amps, ensuring the battery stays charged while the engine is running and that onboard electrical systems have a consistent power source. By maintaining reliable charging output, it prevents deep battery discharge, supports reliable starts, and enables all electrical systems (lights, gauges, ignition) to operate as intended.
Alternators convert mechanical energy from the engine into electrical power, replenishing the battery and supplying current to electrical loads such as ignition systems, lighting, and accessories. OE Match units are built to mirror key characteristics of the original unit - including electrical output, pulley alignment, and mounting points - for a seamless installation.
Function
• Generates electrical power: Converts engine rotation into 12 V DC current
• Maintains battery charge: Keeps the battery topped up during operation
• Supports electrical loads: Powers lights, ignition, horn, gauges, and accessories
• OEM-style performance: Designed to match original Porsche charging characteristics
Proper functioning of the alternator is essential for dependable operation of classic Porsche electrical systems, especially with higher loads like daytime running lights or additional accessories.
Alternators wear with age due to electrical load, mechanical stress, heat, and bearing fatigue. Common signs of a failing alternator include:
• Dim or flickering lights
• Battery discharge or inability to hold charge
• Erratic electrical performance
• Unusual noises from the alternator bearings
• Failure to start due to low battery.
A worn alternator can leave you stranded or cause electrical component stress. Replacing it with an OE Match unit helps ensure reliable electrical generation, supports daily driving needs, and preserves the classic vehicle’s original electrical behaviour.
When to replace. Replace this OE Match alternator when:
• The charging system fails to maintain battery voltage
• Battery frequently runs down or goes flat
• Alternator noises (bearing rumble, whine) are present
• You are performing a restoration or electrical system upgrade
• Original alternator shows wear, overheating, or damage
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61660310201
The product you are viewing cross references to these numbers
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- 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) RS 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
Fits:
Porsche 964 1989-94
Porsche 993 1994-98
300 Series WOSP Alternators
The WOSP 300 Series represents our latest-generation alternator technology,
designed for maximum efficiency and performance. These advanced units use
square wire ‘hairpin’ (segment conductor) stators, delivering exceptional
current density and allowing much higher output compared to traditional
designs.
Each alternator case is precision-machined in-house from billet aluminium,
ensuring strength, durability, and a perfect fit. The result is a range of
plug-and-play alternators built to outperform standard OEM units while
maintaining easy installation.
Key Features
- Advanced hairpin stator technology for superior efficiency
- Precision billet housings manufactured in the UK
- Wide range of direct-fit, plug-and-play applications
• Weight: 6.9kg
• Amp: 180
• Connections: B+ / Lamp
• Construction: Full Billet
• All units are produced to BSI ISO 9002 standards.
• All units have their own serial number for traceability.
Fits engines: M64.01 / M64.02 / M64.03 / M64.05 / M64.06 / M64.07 / M64.08 / M64.20 / M64.21 / M64.05S / M64.06S
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96460315601
The product you are viewing cross references to these numbers
.png?width=197 "Alternator High output 240 amp. Porsche 964 / 993 - 96460315601, 964603156AX, 964603156BX, 91160315501, 96460315600 - LMA339")
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- 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) RS 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
Fits:
Porsche 964 1989-94
Porsche 993 1994-98
300 Series WOSP Alternators
The WOSP 300 Series represents our latest-generation alternator technology,
designed for maximum efficiency and performance. These advanced units use
square wire ‘hairpin’ (segment conductor) stators, delivering exceptional
current density and allowing much higher output compared to traditional
designs.
Each alternator case is precision-machined in-house from billet aluminium,
ensuring strength, durability, and a perfect fit. The result is a range of
plug-and-play alternators built to outperform standard OEM units while
maintaining easy installation.
Key Features
- Advanced hairpin stator technology for superior efficiency
- Precision billet housings manufactured in the UK
- Wide range of direct-fit, plug-and-play applications
• Weight: 6.9kg
• Amp: 240
• Connections: B+ / Lamp
• Construction: Full Billet
• All units are produced to BSI ISO 9002 standards.
• All units have their own serial number for traceability.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
96460315601
The product you are viewing cross references to these numbers
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- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- 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) RS 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
Classic Retrofit's upgraded 175A alternator for classic Porsche 964 and 993 models. This alternator is the best upgrade for cars with the standard double pulley or RS single pulley arrangements. The idle output is around 75A depending on pulley size and idle speed.
Fits:
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998
This is a brand new unit, not rewound or reconditioned and there is no core charge or exchange. Based on the large-case Denso 6 phase 'hairpin' alternator, the casing has been custom designed to fit all 964 and 993 fan housings. The alternator offers superior efficiency and produces less heat than the original units.
With so many electrical upgrades pushing old-school charging technology to the limit, Classic Retrofit's upgraded alternator for classic Porsche 911s is the perfect addition to a modern-day classic.
Used in conjunction with our electric A/C, this alternator offers higher levels of cooling without compromising battery voltage. All of our alternators come complete with heavy duty cables.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
964603175AMP
The product you are viewing cross references to these numbers