ignition wire Genuine Porsche part 477905442

Ignition HT lead set



Fits:
Porsche 924 1977-85

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

477905441

The product you are viewing cross references to these numbers

Ignition HT lead set, Complete set
This OE Match Ignition HT Lead Set is a complete high-tension ignition cable kit designed for Porsche 924 Turbo models. It delivers electrical current from the ignition system to the engine’s spark plugs.

Fits:
Porsche 924 Turbo 1979 - 1982

This OE match ignition HT lead set is a direct replacement for the original Porsche ignition wiring used in the 924 Turbo. Designed to factory specifications, the set includes all necessary leads to connect the ignition coil and distributor to each cylinder.

This ignition lead set transmits high-voltage electrical current from the ignition coil or distributor to the spark plugs, ensuring a strong and consistent spark for combustion.

By maintaining reliable spark delivery, it supports smooth engine operation, efficient fuel combustion, and consistent performance.

Function
• Transfers high-voltage current to spark plugs
•  Ensures consistent and reliable ignition spark
•  Maintains proper combustion efficiency
•  Reduces electrical resistance and signal loss
•  Provides insulation against heat, moisture, and vibration

Over time, ignition leads degrade due to heat, age, and electrical stress. This can cause weak spark delivery, leading to misfires, poor performance, and increased fuel consumption. Replacing worn leads restores ignition efficiency, improves engine smoothness, and ensures reliable starting and performance.

When to replace
•  Engine misfires or rough idle
•  Difficulty starting, especially in cold or damp conditions
•  Visible cracks, wear, or brittle insulation
•  Increased fuel consumption or poor performance
•  During tune-up or ignition system service

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

93160910501

The product you are viewing cross references to these numbers

Ignition HT Lead Cylinder 2.
The 477905442 is a factory-specified high-tension ignition lead (spark plug wire) for Porsche 924 engines. It connects the vehicle’s ignition coil or distributor to the spark plugs, delivering the high-voltage spark required for fuel ignition inside the engine cylinders.

Fits:
Porsche 924 1980 - 1985

Diagram ref no 26

This ignition lead:
• Transmits strong, stable high-voltage current from the ignition source to each spark plug, ensuring proper combustion and engine performance.
• Maintains excellent insulation and voltage integrity under the extreme conditions of heat, vibration, and engine bay exposure.
• Provides correct length, terminal fitment, and resistor specification as per Porsche’s original design - ensuring the ignition system operates to factory standards.
• Helps deliver clean combustion, consistent throttle response, smooth idle, and reliable starting - key to engine health and drivability on Porsche 924.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

477905442

The product you are viewing cross references to these numbers

Ignition HT lead set.
This ignition cable set consists of 5 cables.

Fits:
Porsche 924 1977-85 XJ, XK
Porsche 924 Turbo 1980-86 M31.03


Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

477905441

The product you are viewing cross references to these numbers

Ignition HT Lead Cylinder 1.
The ignition lead (high-tension wire) 477905441 is a factory-spec wire that carries high-voltage spark from the distributor or coil to the spark plug(s) on the Porsche 924. It ensures the spark reaches the plug at the correct moment and with sufficient strength for reliable combustion.

Fits:
Porsche 924 1980 - 1985

Diagram ref no 26

What this Ignition HT Lead does:
• Delivers a clean, strong spark from the ignition system to the spark plugs, enabling efficient combustion and reliable engine starting.
• Provides high-quality insulation to prevent electrical leakage or arcing, ensuring spark integrity even under heat and vibration typical in the engine bay.
• Maintains consistent resistance and electrical characteristics, resulting in stable ignition timing, smoother running, and reduced misfire risk.
• Replaces worn, cracked, or degraded original leads to restore original ignition performance - especially important on older cars where insulation can deteriorate over time.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

477905441

The product you are viewing cross references to these numbers