Ignition Lead Sets

Ignition cable holder.

Fits:
Porsche 911 / 930 1965-89
Porsche 914-6 1970-76

Diagram ref no 21

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90160959100

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Ignition cable holder - set of 6

Fits:
Porsche 911 - 1965 to 1989
Porsche 911 turbo - 1975 to 1989
Porsche 914-6 - 1970 to 1976

These are available in twisted or straight versions

These wire holders were originally used by the Porsche factory racing team on iconic models such as the 911R, 911RS, 911RSR, 935, 934, and 906.
Designed to organise and separate spark plug wires, they help keep the wires clear of the engine block and fan shroud. Flexible and adaptable, each holder can be bent to suit various setups.  

Replaces diagram ref no 21

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90160959100

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Ignition Cable / Spark Plug Wire Holder.
Ignition cable holder organise the spark plug leads on classic Porsche 911, 930 Turbo and 914-6 models. These clips keep the HT leads neatly grouped and routed away from hot or moving engine components, helping ensure reliable ignition and a tidy, period-correct engine bay.
Sold each.

Fits:
Porsche 911 / 930 1965 - 1989
Porsche 914-6 1970 - 1976

Diagram ref no 21

Moulded to the same dimensions as the original Porsche part, this holder grips the leads firmly. It’s ideal when refreshing ignition components, fitting new leads, or restoring the look of a classic flat-six. Many applications use several holders per engine.

Function:
• Clips around multiple ignition leads to hold them in a fixed bundle
• Reduces vibration-induced movement that can cause insulation wear
• Aids easy maintenance by keeping lead routing clear and repeatable

Old ignition cable holders often become brittle, warped or broken, leaving plug leads to sag, touch hot surfaces or rub on engine parts. That can lead to:
• Damaged HT lead insulation and potential misfires
• Untidy, hard-to-service lead routing
Fitting fresh holders restores safe, neat lead routing and completes any ignition refresh or classic engine-bay restoration.

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90160959100

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Ignition HT Lead Set 

Restore the ignition performance of your classic air-cooled Porsche with this Ignition HT Lead Set. This complete set delivers reliable high-voltage transmission from the ignition distributor to each spark plug, ensuring efficient combustion and smooth engine operation.

Fits:

• Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
• Porsche 911 1978-1983 3.0L / SC
• Porsche 911 1975-1977 3.0L Turbo (930)
• Porsche 911 1978-1989 3.3L Turbo (930)

The HT (High Tension) leads play a vital role within the ignition system by carrying thousands of volts generated by the ignition coil to the spark plugs. This electrical energy creates the spark that ignites the air and fuel mixture inside each cylinder, allowing the engine to produce smooth, efficient and reliable power.

Manufactured to OE Match standards, these ignition leads provide excellent insulation, precise fitment and dependable electrical performance, making them ideal for routine servicing, engine rebuilds or ignition system restoration.

Why Do Ignition HT Leads Fail?

HT leads operate in one of the harshest environments on the vehicle. Positioned around the engine, they are constantly exposed to high temperatures, vibration, oil vapours and moisture. Over time, the insulation naturally deteriorates, allowing electrical current to leak before it reaches the spark plug.

The internal conductor can also degrade with age, increasing electrical resistance and reducing spark energy. Cracked insulation, hardened boots or corrosion at the terminals can all contribute to ignition problems, particularly under heavy engine load or in damp conditions.

On turbocharged engines such as the Porsche 930, where higher cylinder pressures require a stronger ignition spark, deteriorated HT leads can become even more noticeable, leading to reduced performance and poor combustion.

When Should HT Leads Be Replaced?

Ignition leads should be inspected during routine servicing and replaced whenever there are signs of deterioration or ignition performance begins to suffer.

Common signs include:

• Engine misfires Rough idle
• Hesitation under acceleration
• Difficult starting
• Reduced fuel economy
• Visible cracks or damage to the insulation
• Hardened or split rubber boots
• Corroded electrical terminals
• During a complete ignition tune-up or engine rebuild

Replacing the complete lead set ensures balanced ignition performance across all cylinders and helps maximise the lifespan of the spark plugs, distributor cap and rotor arm.

Key Features

• Complete ignition HT lead set
• Restores efficient spark delivery
• High-quality insulation for reliable performance
• Precision manufactured for accurate fit
• Helps eliminate ignition misfires and rough running
• Ideal for servicing, restoration and engine rebuilds

Porsche 911 SC & 930 Turbo Ignition Components

A healthy ignition system is essential to maintaining the performance and character of every air-cooled Porsche engine. The HT lead set forms the link between the ignition coil, distributor and spark plugs, ensuring each cylinder receives the correct spark at precisely the right time.

As ignition components age together, replacing the HT leads alongside the spark plugs, distributor cap and rotor arm helps restore the crisp throttle response, smooth idle and dependable reliability expected from the Porsche flat-six.

Whether you're maintaining a regularly driven 911 SC or preserving the performance of a classic 930 Turbo, renewing ageing ignition components is an important part of preventative maintenance.

Benefits of Replacing the HT Lead Set

• Restores full ignition performance
• Delivers stronger, more consistent spark energy
• Improves starting and idle quality
• Helps eliminate ignition misfires
• Supports improved fuel efficiency
• Reduces stress on other ignition components
• Ideal for complete ignition servicing       

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91160901007

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Ignition HT Lead Set.



Fits:
Porsche 911SC 2.7L, 3.0L 1975>>
Porsche 930 3.3L 1975-89

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91160901007

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Ignition coil to distributor ignition lead, Single.



Fits:
Porsche 911SC 2.7L, 3.0L 1975>>
Porsche 930 3.3L 1975-89

Click 'Zoom in' for large parts diagram.
Diagram ref no 18

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91160906107

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Retainer bracket spark plug socket RSR style.
Sold as a set of 6

Fits:
Porsche 911 / 930 1965-89
Porsche 914-6 1970-76

These RSR-style spark plug socket retainers mount directly to your valve covers, securing the ignition wire leads to the spark plugs. They are especially effective on dual-plug engines with downward-facing spark plugs, helping to prevent them from vibrating loose.  

These holders were used by Porsche racing teams in cars like the 911R, 911RS, 911RSR, 935, 934 and 906.

Group plug lower section on ignition lock connector housing, forming part of ignition lock wiring harness.



Fits:
Porsche 911 1970-89
Porsche 914/6 1970-72
Porsche 924S 1986-88
Porsche 928 1983-95
Porsche 944 1985-91
Porsche 968 1992-95
Porsche 964 1989-94

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99965242640

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