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Ignition Coil
Electrical plug housing - multiple applications (see below).
Porsche 986 Boxster 1997-04
- Camshaft position sensor
- Throttle valve
- Ignition coil
Porsche 996 Carrera & GT3 1998-05
- Ignition coil
Porsche 964/993 Carrera & Turbo 1994-98
- Crankshaft position sensor
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99965291640
The product you are viewing cross references to these numbers
Electrical plug housing - multiple applications (see below).
Porsche 986 Boxster 1997-04
- Camshaft position sensor
- Throttle valve
- Ignition coil
Porsche 996 Carrera & GT3 1998-05
- Ignition coil
Porsche 964/993 Carrera & Turbo 1994-98
- Crankshaft position sensor
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99965291640
The product you are viewing cross references to these numbers
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
Ignition Coil
The Porsche Ignition Coil is a vital ignition
system component designed for Porsche 924 turbo and Porsche 924 GT models. Its
primary function is to convert the vehicle's 12-volt battery supply into the
high-voltage electrical charge required to fire the spark plugs and ignite the
air-fuel mixture inside the engine cylinders.
Fits:
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
A properly functioning ignition coil is essential for reliable starting, smooth running, strong acceleration and efficient combustion. Turbocharged Porsche engines place greater demands on the ignition system due to increased cylinder pressures under boost, making ignition coil condition especially important for maintaining performance and reliability.
Whether you're carrying out preventative maintenance, diagnosing ignition faults or restoring a classic Porsche 924 Turbo or 924 GT, replacing an ageing ignition coil can help restore optimum ignition performance and engine efficiency.
What Does an Ignition Coil Do?
The ignition coil acts as a high-voltage transformer within the ignition system. It amplifies the low-voltage electrical current supplied by the battery into the thousands of volts required to generate a spark at the spark plugs.
This spark ignites the compressed air-fuel mixture within the combustion chamber, producing the power needed to drive the vehicle.
A healthy ignition coil helps provide:
Reliable engine starting Strong and consistent spark delivery Efficient fuel combustion Smooth idle quality Improved throttle response Optimum engine performance Reliable operation under turbocharged conditionsWhen Should an Ignition Coil Be Replaced?
Ignition coils naturally deteriorate over time due to heat cycles, vibration, age and electrical stress. Internal windings and insulation materials can weaken, reducing spark output and causing ignition system faults.
Common symptoms of a failing ignition coil include:
Hard starting Engine misfires Rough idle Hesitation during acceleration Reduced power output Poor fuel economy Intermittent stalling Weak spark performance Loss of performance under boostBecause turbocharged engines require a stronger and more consistent spark, ignition coil issues are often more noticeable during acceleration or higher engine loads.
Replacing a worn ignition coil helps restore ignition performance, improve reliability and reduce stress on other ignition components such as spark plugs, ignition leads, distributor caps and rotors.
Features & Benefits
Ignition Coil Part Number: 211905115B Suitable for Porsche 924 Turbo models Suitable for Porsche 924 GT models Generates the high-voltage current required for ignition Helps restore reliable starting and smooth running Supports optimum combustion efficiency Improves ignition performance under boost Ideal for maintenance, repair and restoration projects Durable construction for long service lifeKeep your Porsche ignition system operating at its best with Ignition Coil 211905115B from Design911.
Porsche Ignition Coils & Ignition System Components
Premium Porsche Ignition Parts for Classic Performance Models
Design911 supplies a comprehensive range of Porsche ignition coils, distributor caps, rotor arms, ignition leads, spark plugs and ignition system components for classic Porsche models. Whether you're maintaining a Porsche 924 Turbo, restoring a rare Porsche 924 GT or servicing a classic transaxle Porsche, our ignition components help deliver reliable performance and long-term dependability.
The ignition coil is one of the most important components in the ignition system. Without sufficient spark energy, fuel combustion becomes less efficient, resulting in poor performance, misfires, difficult starting and increased fuel consumption.
Regular replacement of ageing ignition components helps maintain reliability and preserve the performance characteristics Porsche intended.
Why Replace a Porsche Ignition Coil?
Over time, ignition coils become less effective due to internal wear and electrical degradation.
Benefits of replacing a worn ignition coil include:
Improved starting performance Stronger spark output Reduced engine misfires Smoother idle quality Better throttle response Improved fuel combustion Enhanced reliability for turbocharged applications More consistent engine performanceRelated reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
211905115B
The product you are viewing cross references to these numbers
Ignition Coils – Reliable Spark and Power Delivery for Porsche Engines
Ignition coils are essential components in your Porsche’s ignition system, transforming low-voltage power from the battery into the high-voltage energy required to ignite the air-fuel mixture inside the engine cylinders. A healthy ignition coil ensures smooth acceleration, efficient combustion, and consistent engine performance.
At Design911, we supply a wide range of genuine and high-quality ignition coils for various Porsche models including 356, 911, 924, 944 and 928. Each coil is precision-engineered for durability, heat resistance, and optimal spark performance, ensuring your Porsche continues to deliver the power, efficiency, and reliability it was designed for.
What Do Ignition Coils Do?
Ignition coils play a crucial role in your Porsche’s
ignition system by converting 12-volt battery power into up to 40,000 volts to
fire the spark plugs. Their main functions include:
- Generating high-voltage spark energy for combustion.
- Delivering consistent ignition timing across all cylinders.
- Supporting smooth acceleration and engine efficiency.
- Reducing emissions by ensuring complete combustion.
Modern Porsche models may feature coil-on-plug systems that provide precise, individual spark control for each cylinder — maximising performance and responsiveness.
Why Do Ignition Coils Fail?
Over time, ignition coils are subjected to high voltage,
heat, and vibration, which can cause wear or internal damage. Common causes of
failure include:
- Heat
degradation of coil insulation or wiring.
- Moisture
intrusion leading to short circuits.
- Age-related
electrical fatigue in coil windings.
- Faulty
spark plugs causing excessive resistance and strain.
- Corrosion or poor electrical connections.
Typical symptoms include engine misfires, rough idling, loss of power, difficulty starting, or an illuminated check engine light.
Why Replace Faulty Ignition Coils?
A failing ignition coil can cause poor fuel economy, misfires, or damage to the catalytic converter. Replacing worn or damaged coils restores proper spark strength, combustion efficiency, and overall engine performance.
Benefits of replacement include:
- Smoother acceleration and stronger performance.
- Reduced misfires and improved fuel economy.
- Lower emissions and smoother idle.
- Long-lasting, manufacturer-quality reliability.
All ignition coils in our range are made using high-grade materials and advanced insulation technology, ensuring consistent voltage delivery, heat resistance, and dependable performance under demanding conditions.
1. What does an ignition coil do in a Porsche?
The ignition coil converts the car’s 12-volt battery power
into a high-voltage spark that ignites the fuel-air mixture in each cylinder.
This ensures smooth engine operation, efficient combustion, and reliable
performance.
2. What are the symptoms of a bad ignition coil?
Common signs of a failing ignition coil include engine
misfires, rough idling, reduced acceleration, poor fuel
economy, and a check engine light. You may also notice hesitation or
vibration when accelerating.
3. Can I drive my Porsche with a bad ignition coil?
Driving with a failing ignition coil is not recommended.
It can cause engine misfires, loss of power, and long-term damage
to spark plugs or the catalytic converter. Replacement should be done promptly
to avoid costly repairs.
4. How long do ignition coils last on a Porsche?
Typically, ignition coils last between 60,000 and 100,000
miles, depending on driving conditions and maintenance. Regular spark plug
replacement and avoiding moisture exposure can extend their lifespan.
5. Are manufacturer-quality ignition coils as good as
genuine Porsche parts?
Yes — manufacturer-quality ignition coils are built
to the same precise specifications and performance standards as genuine parts.
They provide excellent fitment, voltage output, and long-term reliability,
often at a more cost-effective price.
