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- 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 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- 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
Fits:
Porsche 911 1984-89 (not Turbo)
Porsche 924S 1986-88
Porsche 944 1982-91
Porsche 964 C2 / C4 1989-94
Porsche 964 Carrera RS 1992
Porsche 964 C2 Tiptronic 1990-94
Porsche 968 1992-95
Click "Zoom In" for large parts diagram.
Diagram ref no 2.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
94460280100
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
- 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