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Uprated Alternator / Generator
By OE Match
- 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 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 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 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
OEMatch Uprated Alternator / Generator — Fit, Function, Confidence
Uprated alternators and generators for Porsche models increase available charging capacity where extra electrical load is present. This page explains how higher-output units support additional lighting, audio or control systems and offers guidance to help choose a compatible replacement for Porsche applications.
Understanding OEMatch Uprated Alternator / Generator
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original uprated alternator / generator. OE (Original Equipment) refers to parts matching original specifications for the uprated alternator / generator and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM uprated alternator / generator engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
An uprated alternator increases available amperage and helps maintain stable voltage under sustained load. These units are used when auxiliary lighting, high-power audio, additional cooling or upgraded engine management increase electrical demand. Correct selection considers regulator type, connector and pulley drive arrangements to ensure compatibility with Porsche charging systems.
Benefits Include
- Increased charging capacity to support additional accessories
- More stable voltage under sustained electrical load
- Reduced risk of battery discharge and related electrical faults
Why Uprated Alternator / Generator Wear and Fail
- Bearing wear and brush degradation from prolonged use
- Voltage regulator faults or diode failure affecting output
- Contamination from oil, moisture or road debris
- Overheating caused by sustained high load or restricted cooling
The Importance of Replacing with OEMatch Uprated Alternator / Generator
Replacing a failing alternator prevents intermittent power loss, protects the battery and downstream electronics, and keeps lighting and safety systems functioning. For Porsche vehicles that carry higher electrical loads, choosing a suitable uprated unit helps reduce stress on wiring and supports reliable starting and charging performance.
Advantages
- Designed to match original mounting and electrical interfaces where specified for Porsche applications
- Constructed with cooling and materials suited to higher output demands
- Supplied with application guidance to aid correct connector and pulley selection
Support & Advice
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified.
