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- 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
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 928 4.5L 1978-82
- Porsche 928S 4.7L 1981-83
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
The OE Match (Bosch style) ignition coil (Bosch MPN 0221118322, Porsche OEM 944.602.115.00 / 944.602.115.01) sold as the direct replacement coil, It’s the high-voltage transformer that converts 12–14 V battery energy into the high voltage a spark plug needs to ignite the air/fuel mix. Please note the Bosch product is no longer available so this is one of the only alternatives.
Fits:
Porsche 911 1984 - 1989 (not Turbo)
Porsche 924S 1986 - 1988
Porsche 944 1982 - 1991
Porsche 964 C2 / C4 1989 - 1994
Porsche 968 1992 - 1995
Porsche 928 Cars Up to 1988 *2 Ignition Coils Per Car
Replace the coil when any of the following apply:
• Out-of-spec resistance on primary or secondary (measured with DVM). If primary > ~1 Ω or secondary well outside the 5–9 kΩ region.
• Intermittent misfire(s), rough idle, loss of power, or poor fuel economy that follow coil diagnostics. Ignition coils degrade and can produce weak/inconsistent sparks before total failure.
• Check Engine Light with misfire codes (P0300–P030x) that point to a particular cylinder and a coil swap test proves the coil is at fault.
• Visible damage (cracked housing, carbon tracking/arcing, oil contamination of electrical terminals, corroded connectors). These are signs of imminent failure or arcing that can damage plugs/caps.
• Age / preventive maintenance: rubber seals, insulation and internal windings deteriorate with heat and time; on older cars it’s common to replace coils as part of ignition refresh.
Common failure modes / symptoms
• Cylinder misfires / rough running (single cylinder or random).
• Hard starts or no-start if coil output falls below what’s needed to light the plug.
• Check Engine Light with misfire codes (P0300, P0301… etc).
• Intermittent stalling or power loss under load (coil heating causes intermittent fault).
• Arcing / carbon tracking visible on coil body or cap — can cause cross-firing or misfires.
• Failed connectors / harness corrosion causing poor coil drive — sometimes harness/connectors are the root cause rather than the coil itself.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94460211501
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 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 928S2 4.7L 1984-86
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
Fits:
Porsche 993 C2 / C4 / RS 1994-98
This product supersedes Porsche's old part numbers:
- 99360270600
Click 'Zoom in' for large parts diagram.
Diagram ref no 8
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99360270601
The product you are viewing cross references to these numbers
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
The OE Match Ignition Coil is a premium-quality replacement ignition system component designed to deliver the high-voltage electrical energy required to ignite the air and fuel mixture in compatible Porsche engines. Manufactured to OE specifications for fit, electrical performance and durability, this ignition coil restores reliable spark generation, ensuring efficient combustion, smooth engine operation and dependable starting performance.
Fits:
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 928S4 5.0L 1987-92
- Porsche 928GT 5.0L 1989-91
- Porsche 928GTS 5.4L 1992-95
Manufactured using high-quality copper windings, premium magnetic core materials and a robust heat-resistant housing, the ignition coil is engineered to withstand high operating temperatures, engine vibration and continuous electrical demand. Precision-built for direct OE-style installation, it provides consistent voltage output across all engine speeds, making it an ideal replacement for worn or failing original ignition coils.
What This Product Does:
- Converts battery voltage into the high voltage required for ignition.
- Supplies consistent electrical energy to the ignition system.
- Ensures reliable spark generation for efficient combustion.
- Improves engine starting and idle quality.
- Supports smooth engine performance across the rev range.
- Helps maintain optimum fuel efficiency and emissions.
- Restores factory ignition performance.
- Forms an essential part of the engine ignition system.
Symptoms Of Wear Or Failure:
- Engine misfires.
- Difficult or prolonged engine starting.
- Rough or unstable idle.
- Loss of engine power during acceleration.
- Poor fuel economy.
- Hesitation or jerking under load.
- Illuminated engine management warning light (where applicable).
- Increased exhaust emissions.Intermittent stalling.
- Complete no-start condition if the coil fails.
Why Replacement Matters:
- The ignition coil operates continuously under high electrical loads and is exposed to constant heat, vibration and thermal cycling. Over time, the internal windings, insulation and electrical connections can deteriorate, reducing the coil's ability to generate a strong and consistent spark.
- A failing ignition coil can cause incomplete combustion, resulting in engine misfires, reduced performance, poor fuel economy and increased emissions. Continued operation with a faulty coil may also place additional strain on spark plugs, ignition leads and catalytic converters, potentially leading to more extensive and costly repairs.
- Replacing a worn or faulty ignition coil restores reliable ignition performance, smooth engine operation and efficient combustion. The OE Match replacement provides factory-style fitment, premium-quality internal components and long-lasting durability, helping maintain the performance, reliability and driving experience expected from your Porsche.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92860211600
The product you are viewing cross references to these numbers