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Alternator / Generator
- Porsche 356A 1955-59
- Porsche 356B 1959-63
Fits:
Porsche 356A - 1955 to 1959
Porsche 356B T5 - 1959 to 1962
12v Alternator Conversion Kit for all three piece engines on 356A and 356B T5
Perfect for 12v power upgrades without the concourse look
Kit includes:
High output 12v 55 amp alternator
Early Adaptor plate (Only required for early style oil filler)
Fan Housing Backing Plate
Alternator Stand, Alternator Strap
Pulley Hub
Gaskets & Hardware
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
35660310100
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356B T6 - 1962 to 1963
Porsche 356C - 1963 to 1965
Porsche 912 - 1965 to 1969
12v Alternator Conversion Kit for all three piece engines on 356B T6 , 356C and 912
Perfect for 12v power upgrades without the concourse look
Kit includes:
High output 12v 55 amp alternator
Fan Housing Backing Plate
Alternator Stand
Alternator Strap
Pulley Hub
Gaskets & Hardware
This kit is comprised of the following items:
- Porsche 356A 1955-59
- Porsche 356B 1959-63
Fits:
Porsche 356A - 1955 to 1959
Porsche 356B T5 - 1959 to 1962
12v Alternator Conversion Kit for all three piece engines on 356A and 356B T5
Perfect for 12v power upgrades without the concourse look
Kit includes:
High output 12v 100 amp alternator
Early Adaptor plate (Only required for early style oil filler)
Fan Housing Backing Plate
Alternator Stand, Alternator Strap
Pulley Hub
Gaskets & Hardware
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
35660310100
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356B T6 - 1962 to 1963
Porsche 356C - 1963 to 1965
Porsche 912 - 1965 to 1969
12v Alternator Conversion Kit for all three piece engines on 356B T6 , 356C and 912
Perfect for 12v power upgrades without the concourse look
Kit includes:
High output 12v 100 amp alternator
Fan Housing Backing Plate
Alternator Stand
Alternator Strap
Pulley Hub
Gaskets & Hardware
This kit is comprised of the following items:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
Fits:
Porsche 356B 1600 1.6L 01.1960 - 08.1963 616.1
Porsche 356B 1600 S 1.6L 01.1960 - 08.1963 616?
Porsche 356B 1600 S-90 1.6L 01.1960 - 08.1963 616.7
Porsche 912 1.6 Coupe 1.6L 09.1967 - 08.1968 616.39
Porsche 912 1.6 Coupe 1.6L 09.1965 - 08.1969 616.36
Overall length: 89 mm outer diameter
Voltage: 12V
Power: 25Amp.
Rotation: left, counter-clockwise CCW
Fixing: caliper-fixing (clamp)
Control: no
Pulley: no
Special feature: with continuous wave
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61660310201
The product you are viewing cross references to these numbers
- 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 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
Voltage: 12V
Power: 100Amp.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61660310201
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Porsche ref no 012281A.
Fits:
Porsche 356 A / B / C
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
1080
The product you are viewing cross references to these numbers
- Porsche 356A 1955-59
- Porsche 356B 1959-63
Fits:
Porsche 356A - 1955 to 1959
Porsche 356B T5 - 1959 to 1962
12v Alternator Conversion Kit for all three piece engines on 356A and 356B T5
Perfect for 12v power upgrades without the concourse look
Kit includes:
Early Adaptor plate (Only required for early style oil filler)
Fan Housing Backing Plate
Alternator Stand, Alternator Strap
Pulley Hub
Gaskets & Hardware
Please Note
Alternator NOT included
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356B T6 - 1962 to 1963
Porsche 356C - 1963 to 1965
Porsche 912 - 1965 to 1969
12v Alternator Conversion Kit for all three piece engines on 356B T6 , 356C and 912
Perfect for 12v power upgrades without the concourse look
Kit includes:
Fan Housing Backing Plate
Alternator Stand
Alternator Strap
Pulley Hub
Gaskets & Hardware
Please Note
Alternator NOT included
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
35660310601
The product you are viewing cross references to these numbers
- Porsche 356B 1959-63
- Porsche 356C 1963-65
This unit is sold as brand new.
Fits:
Porsche 356 1960-65 Cars with 12 VOLT Starter Motors
REQUIRES MODIFIED UPSTAND
Specification:
Amps: 40 A
OEM: Bosch
Polarity: Negative Earth
Shaft diameter: 15 mm
Voltage: 12 V
Weight: 3.10 kg
Powerlite offer a wide range of high torque gear reduction starter motors. The lightweight units offer increased cranking speeds and considerably more cranking power than original units, whilst drawing less current from the battery. The units are ideal for road competition applications, especially where engines have been tuned and adverse conditions require extra performance from the starter motor. All Powerlite starters are direct replacement for original units and require no modifications to the vehicle on which they are installed. The compact lightweight units are often easier to install than the original unit and units are modified where necessary to aid fitment.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61660410202
The product you are viewing cross references to these numbers
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356
Porsche 356 A
Porsche 356 B
Porsche 356 C
Diagram ref no 5
Related reference numbers
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N0127051
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Upgrade your classic vehicle’s charging system without compromising its period-correct appearance, with Wosp’s Dynator – a high-performance 6 or 12V alternator cleverly disguised as a traditional dynamo or generator.
Designed and manufactured in-house in the United Kingdom from billet, these units deliver approximately double the output of the original dynamo they replace, while offering greater efficiency and weighing just 60% (approx.) as much.
Fits:
Porsche 912 1965-68
Porsche 356 B 1.6L 1960-63
Porsche 356 C 1.6L 1964-65
Fitment Information:
The diameter of this unit is slightly larger than that of the original dynamo (90mm), meaning the cradle it mounts on will need to be machined to accommodate the increased size.
These internally regulated units are direct replacements for the original dynamo. You simply have to bypass your regulator box or replace it with one of our dummy bulkhead mounted regulator boxes to eliminate any wiring modifications.
-Specifications-
Voltage: 6V or 12V
Amperage: 50A
Polarity: Positive or Negative Earth (Please Select Below)
B+ Terminal Position: Fixed
Pulley: Uses Original Pulley
Build Standard: Manufactured to BSI ISO 9002
-Dimensions-
Total Length Excluding Rotor: 155mm
Total Length Including Rotor: 245mm
About WOSPerformance:
At WOSP we design & manufacture bespoke starting & charging systems in the UK & USA and distribute them via a dealer network. We have produced alternators, starter motors and dynators for over 40 years to the highest standards. Working with and supplying some of the industries top names such as Aston Martin, Cosworth, Dallara, Ginetta, Jaguar, Lamborghini, McLaren, Renault Sport and race series such as F3, GP3, Supercar lites Rally X and Indy lights. Albeit our roots are firmly in Motorsport we also cater for areas of the industry such as Aviation, Industrial, Marine, Plant, Agricultural, and Vintage/Classic/ Historic applications.A family-run company with a fully equipped in house CNC machine shop, we refuse to be beaten on service and quality, whilst pushing the boundaries of what is possible.
Widely regarded as the world leader WOSP offer a full range of starter motors designed to be high torque, reliable, lightweight and completely serviceable. Catering for well over 2000 different starter motor applications it is rare we don’t have the answer for what you require. Whether it is 6, 12 or 24 volt ranging between 1kW and 11kW we use different form factors to ensure easy fitment with no obstruction. All of our units are built to the highest standards using only O.E. parts and units.
Complementary to our starter motors we also produce a complete range of alternators varying in outputs, fitments, size and more. Whether it is a new high quality Lucas replacement or an upgraded lightweight CNC billet plug & play unit there’s usually multiple options. Additionally, growing in awareness our dynators which are alternators disguised as dynamos for the classic car market. Built to be the most authentic looking and reliable on the market they now produce over 200 different models.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
LMDPOR001
The product you are viewing cross references to these numbers
- Porsche 356B 1959-63
- Porsche 356C 1963-65
6 volt or 12 Volt Applications
Fits:
Porsche 356 B/C T6
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64461203707
The product you are viewing cross references to these numbers
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356 B/C 1960-65
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
64461203712
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356 1950-55
- Porsche 356A 1955-59
- Porsche 356B 1959-63
- Porsche 356C 1963-65
Fits:
Porsche 356 1950-65
Porsche 912 1965-69
Diagram ref no 6
Related reference numbers
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54709311
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.