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- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
An OE Match rotor arm designed for the ignition distributor, responsible for directing high-voltage current to the correct spark plug in Porsche 911 SC and 930 Turbo models. Installed within the distributor, the rotor arm rotates in sync with the engine, transferring high-voltage current from the ignition coil to each spark plug terminal in the correct firing order.
Fits:
Porsche 911 all Turbos 3.0L / 3.3L and 911 3.0L without KAT 1975-89
The "rotor" head is attached to the top of the distributor shaft which is driven by a gear on the engine's camshaft and thus synchronized to it. This rotor is pressed against a carbon brush on the center terminal of the distributor cap which connects to the ignition coil either through the top and wired directly to the coil in HEI systems, or via the centre terminal in points ignition systems and remotely connected to the coil.
The rotor is constructed such that the centre tab is electrically connected to its outer edge so that voltage coming in to the centre post travels through the carbon point to the outer edge of the rotor. As the camshaft rotates, the rotor spins and its outer edge passes each of the internal plug terminals to fire each spark plug.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93060290105
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
The OE MATCH Rotor Arm is an OE-matching ignition system component designed for distributor-equipped Porsche engines. Mounted inside the distributor, the rotor arm rotates in sync with the engine and distributes high-voltage current from the ignition coil to the correct spark plug lead via the distributor cap. This ensures that each cylinder receives a spark at precisely the right moment in the combustion cycle.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Manufactured to OE specifications, the rotor arm is engineered for accurate ignition timing, reliable electrical conductivity, and long service life. Constructed from durable, heat-resistant materials, it is designed to withstand the high voltages and temperatures generated within the ignition system while maintaining consistent spark distribution.
What This Product Does:
- Transfers high-voltage current from the ignition coil through the distributor
- Distributes spark to the correct cylinder at the correct time
- Works in conjunction with the distributor cap and ignition system
- Supports smooth engine operation and combustion efficiency
- Maintains accurate ignition timing and spark delivery
- Helps ensure reliable engine starting and performance
Symptoms Of Wear Or Failure:
- Engine misfires
- Difficulty starting the engine
- Rough idle or uneven engine running
- Loss of power during acceleration
- Poor fuel economy Engine hesitation or stalling
- Visible burning, corrosion, or wear on the rotor contact
- Ignition system-related performance problems
Why Replacement Matters:
- Restores proper spark distribution to all cylinders
- Improves engine starting and idle quality
- Helps maintain smooth engine performance and power delivery
- Reduces the risk of misfires and ignition faults
- Supports efficient fuel combustion and fuel economy
- Prevents excessive wear on related ignition components
- Maintains reliable ignition timing and spark delivery
- Helps preserve the performance and drivability of classic
- Porsche models equipped with distributor ignition systems
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90160292801
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
Contact Breaker Point Set
Keep your classic Porsche ignition system performing at its
best with this OE Match Contact Breaker Points.
Manufactured to OE specifications, these precision-engineered breaker points
are designed to restore accurate ignition timing, reliable spark generation and
dependable engine performance.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 356A 1955-59
- Porsche 356B 1959-63
As one of the key service components within a traditional distributor ignition system, the contact breaker points control the opening and closing of the ignition circuit, allowing the ignition coil to generate the high-voltage spark required for combustion. Correctly adjusted breaker points are essential for smooth starting, stable idle, responsive acceleration and efficient engine operation.
Whether you're carrying out routine ignition maintenance, rebuilding a distributor or restoring a classic Porsche to its original specification, these OE Match breaker points provide factory-quality fitment, dependable operation and long service life.
What Do Contact Breaker Points Do?
Contact breaker points are responsible for switching the ignition coil on and off in precise synchronisation with engine rotation.
Their primary functions include:
- Opening and closing the ignition circuit.
- Triggering spark generation at the ignition coil.
- Maintaining accurate ignition timing.
- Supporting smooth engine idle.
- Ensuring consistent combustion.
- Providing reliable engine starting.
- Working in conjunction with the distributor, condenser, ignition coil and spark plugs.
Accurate operation of the breaker points is essential for maintaining engine performance and fuel efficiency.
Why Replace Contact Breaker Points?
As mechanical ignition components, breaker points naturally wear through continual opening and closing during engine operation.
Common causes of wear include:
- Contact surface erosion.
- Electrical arcing. Incorrect point gap adjustment.
- Heat-related wear.
- Oxidation and corrosion.
- Weak contact spring tension.
- General age-related deterioration.
- High mileage.
Routine replacement helps maintain accurate ignition timing and reliable engine performance.
Symptoms of Worn Contact Breaker Points
Common signs that replacement may be required include:
- Difficult starting.
- Engine misfires.
- Rough or unstable idle.
- Poor acceleration.
- Hesitation under load.
- Reduced fuel efficiency.
- Loss of engine power.
- Inconsistent ignition timing.
- Increased exhaust emissions.
Replacing worn ignition points restores smooth running and helps protect other ignition system components from unnecessary stress.
Benefits
- Restores reliable ignition performance.
- Maintains accurate ignition timing.
- Improves engine starting.
- Supports smoother idle.
- Enhances throttle response.
- Helps improve fuel efficiency.
- Reduces misfires and hesitation.
- Excellent value replacement component.
Installation Recommendations
When replacing the contact breaker points, it is recommended
to inspect or renew other ignition service components, including:
- Distributor condenser.
- Distributor cap.
- Rotor arm.
- Spark plugs.
- Ignition leads.
- Ignition coil.
- Distributor shaft for wear.
- Distributor advance mechanism.
After installation, the breaker point gap and ignition timing should be adjusted according to the manufacturer's specifications to ensure optimum engine performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61660222603
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
OE Match point set for Porsche 911 models from 1972 to 1973. This replacement ignition contact breaker point set helps restore correct distributor ignition switching, supporting reliable spark delivery, smooth running, and accurate engine timing.
Fits:
Porsche 911 1972 - 1973
Diagram ref no 18
The point set opens and closes within the distributor to trigger the ignition coil and create spark at the correct time. Correctly adjusted points are essential for reliable starting, smooth idle, clean acceleration, and proper ignition timing.
Functions
• Replaces the ignition contact breaker point set
• Helps trigger ignition spark through the distributor
• Supports correct ignition timing
• Helps restore smooth starting, idle, and throttle response
• Suitable for routine ignition tune-up and distributor service
• Replaces worn, pitted, burnt, corroded, or incorrectly adjusted points
• OE Match replacement for classic Porsche 911 ignition maintenance.
Why Replace This Part?
Ignition points wear over time through electrical contact, heat, distributor cam movement, and age. Worn or pitted points can cause weak spark, misfires, difficult starting, poor idle, hesitation, reduced performance, or incorrect dwell angle. Replacing and correctly setting the point set helps restore accurate ignition operation.
When to Replace This Part
• Routine ignition service or tune-up is due
• Starting is difficult or inconsistent Idle is rough or unstable
• Engine misfires, hesitates, or lacks response
• Ignition timing or dwell angle cannot be set correctly
• Existing points are burnt, pitted, worn, corroded, or damaged
• The vehicle is undergoing Porsche 911 distributor or ignition restoration.
Where it fits on the car
This point set fits inside the ignition distributor on Porsche 911 models from 1972 to 1973. It forms part of the distributor-based ignition system.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90160296004
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 912E 4CYL 1976
OE Match contact breaker points for classic Porsche distributor ignition systems.
Fits
- Porsche 911 1965-73
- Porsche 912E
Check fitment for your specific vehicle (model, year, engine) before ordering.
What This Product Does
The breaker contacts make and interrupt the ignition coil circuit as the distributor rotates. Their adjustment determines dwell and contributes to ignition timing; they do not perform the rotor arm's separate task of directing voltage to individual spark plugs.
Functions
- Switch the coil's electrical circuit mechanically.
- Provide the contact opening and closing action used by points-based ignition.
- Allow gap and dwell adjustment during ignition servicing.
Technical Details
- Product reference: 61660222602. Existing reference information also records BOSCH 1237013081.
- Replacement brand: OE Match; Bosch distributor applications are identified in the supplied diagrams.
Symptoms of Fault
- Difficulty starting or an irregular idle.
- Misfiring or hesitation when under load.
- Intermittent cutting out as engine speed rises.
- Burning, pitting or arcing marks on the contacts.
- Dwell or timing that does not remain stable after adjustment.
Why Replacement Matters
Mechanical wear and electrical arcing can deteriorate the contact surfaces and affect their adjustment. Renewing worn points addresses this service item, but the condenser, distributor condition and associated connections should also be inspected to identify causes of repeated wear.
FAQs
Does fitting new points complete the adjustment?
No. Check the gap, dwell and ignition timing against the correct vehicle and distributor specifications after installation.
Should the condenser be checked?
Yes. A defective condenser can contribute to rapid contact deterioration and misfiring.
Do these symptoms prove the points are faulty?
No. Inspect the contacts and test the ignition system before replacing components; other electrical faults can produce similar behaviour.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
61660222602
The product you are viewing cross references to these numbers