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- 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 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
OE Match distributor cap for Porsche 964 and 993 models. Designed for the twin-distributor ignition system, this replacement cap provides the electrical connection between the distributor rotor and spark plug leads, helping maintain reliable ignition and smooth engine performance. Two distributor caps are fitted per vehicle.
Sold Individually – 2 Required Per Vehicle
Fits:
Porsche 964 1989 - 1994
Porsche 993 09/1989 - 08/1997
The distributor cap is an important part of the ignition system, directing high-voltage electrical energy from the ignition coil and distributor rotor to the correct spark plug lead.
Porsche 964 and 993 applications use a twin-distributor arrangement, meaning two distributor caps are required per vehicle.
- Replaces the ignition distributor cap
- Distributes ignition voltage to the spark plug leads
- Supports accurate and consistent spark delivery
- Helps maintain smooth engine running
- Supports reliable starting and combustion
- Suitable for routine ignition system servicing
- Replaces cracked, worn or electrically degraded distributor caps
- OE Match replacement for Porsche ignition system maintenance.
- Engine misfires
- Difficult starting
- Rough idle
- Hesitation under acceleration
- Reduced engine performa
- Intermittent ignition faults
- Visible corrosion or burning on the internal terminals
- Distributor contacts are worn or corroded
- Cap is cracked or damaged
- Carbon tracking is visible
- Engine is misfiring
- Starting performance has deteriorated
- Ignition system overhaul is being carried out
- Distributor rotor or ignition leads are being renewed.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93060291902
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
OE Match distributor cap, this replacement forms part of the distributor-based ignition system.
Fits
- Porsche 911 3.0SC 1978-83
- Porsche 930 3.0/3.3L 1975-89
Check fitment for your specific vehicle (model, year, engine) before ordering.
What This Product Does
Working with the rotating distributor arm, the cap provides the electrical paths through which ignition voltage reaches the appropriate spark-plug lead. Its insulating body separates the contacts, helping prevent current from taking an unintended path.
Functions
- Provides connection points for the ignition leads.
- Passes ignition voltage between the rotor and individual lead terminals.
- Encloses the distributor's internal contact area.
Technical Details
- Part number identified in the supplied diagrams: 93060290401.
- Additional supplied reference: 1235522053.
- Application context: 3.0L SC and 3.0L / 3.3L Turbo ignition systems.
Symptoms of Fault
- Uneven running or misfiring, particularly during damp weather.
- Starting difficulties that occur intermittently.
- Hesitation when accelerating.
- Fine cracks around the lead connections.
- Dark tracking lines or electrical burn marks inside the cap.
- Oxidised or visibly deteriorated terminals.
Why Replacement Matters
Cracking, contact deterioration and internal tracking can allow ignition voltage to escape or reach the wrong terminal. Renewing a cap with confirmed damage addresses that fault rather than relying on cleaning alone. Inspect the rotor, leads and surrounding connections during diagnosis, as other ignition faults may produce similar symptoms.
FAQs
- Can damage be hidden?
Yes. Internal tracking may be present even when the outside appears intact. - Should the rotor also be checked?
Inspect both components for deterioration before deciding which parts require renewal. - Will cleaning repair a cracked cap?
No. Removing contamination does not repair cracks or damaged insulation. - How should compatibility be confirmed?
Compare the vehicle details, distributor specification and original references before fitting.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
93060290401
The product you are viewing cross references to these numbers
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
Ignition Lead Set
Rotor Arm
Distributor Cap
Fits:
Porsche 911SC 3.0L 1978-83
188Bhp & 204Bhp cars
Porsche 930 Turbo
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
IGNITIONKIT911.1OEM
The product you are viewing cross references to these numbers
This kit is comprised of the following items: