A vital ignition component in spark-ignition engines, the spark plug generates an electrical spark that ignites the compressed air-fuel mixture inside the combustion chamber.
Engine Ignition Technology
Woojin Automotive India Pvt. Ltd.
A spark plug is an essential component of a spark-ignition internal combustion engine. Installed in the cylinder head, it creates an electrical spark across an electrode gap to ignite the compressed air-fuel mixture.
This ignition initiates combustion, which releases energy to drive the piston and contribute to engine operation. Spark plug design and selection depend on the specific engine requirements.
Creates a spark across the electrode gap to initiate ignition.
Ignites the compressed air-fuel mixture in the engine cylinder.
Specifications must match the intended engine application.
Spark plugs support the ignition process that powers spark-ignition engines.
Delivers an electrical discharge across the electrode gap to initiate combustion within the engine's combustion chamber.
The spark ignites the compressed air-fuel mixture, starting the combustion process that generates power for the engine.
Correct plug dimensions, heat range and electrical characteristics depend on the engine manufacturer's requirements.
A spark plug works with the engine's ignition system. The system generates the voltage needed to create a spark at the plug's electrodes at the appropriate point in the engine cycle.
The ignition system supplies the high voltage needed to produce an electrical discharge across the plug gap.
Electrical energy creates a spark between the centre electrode and the ground electrode.
The spark initiates combustion of the compressed air-fuel mixture, helping produce the power stroke.
Spark plugs are used in spark-ignition engines. Their compatibility is determined by the particular engine design, operating requirements and specified component dimensions.
The company profile records a spark plug supply milestone for the Epsilon engine programme.
Woojin Automotive India's company profile includes a spark plug supply milestone associated with the Epsilon engine programme.
Epsilon Engine 1.0L Spark Plug supply recorded in the company history for HMI.
Source: Woojin Automotive India Pvt. Ltd. Company Profile, dated 10 July 2026.
Essential information about spark plug functions, ignition principles and engine compatibility.