Spark Plug

Quality Spark Plug products from JCA AUTO SUPPLY

Spark Plug

A spark plug is a critical component of an internal combustion engine, responsible for igniting the air-fuel mixture in the combustion chamber. It generates a spark at precisely the right moment to initiate the combustion process, enabling the engine to produce power.

Key Features:

1. Electrode: The spark plug consists of a central electrode and a ground electrode. When electrical current flows through the spark plug, a spark jumps between these electrodes, igniting the fuel mixture.

2. Insulator: Surrounding the central electrode is a ceramic insulator that provides electrical insulation and helps withstand high temperatures and pressures within the combustion chamber.

3. Threaded Shell: The outer shell of the spark plug is threaded to allow for easy installation and removal from the engine. It is typically made of steel or a similar durable material.

4. Heat Range: Spark plugs are designed with specific heat ranges, which determine how quickly they can dissipate heat. This ensures optimal performance under various operating conditions.

5. Material Types:

   • Copper: Standard spark plugs with a copper core for good conductivity but shorter lifespan.
   • Platinum: Offer better longevity and performance, suitable for most vehicles.
   • Iridium: Known for their durability and excellent performance, often used in high-performance and modern engines.

6. Resistor: Many spark plugs are designed with a resistor to minimize electromagnetic interference (EMI) with the vehicle’s electronic components.

Importance:

Regular inspection and replacement of spark plugs are crucial for maintaining engine performance, fuel efficiency, and emissions control. Worn or faulty spark plugs can lead to misfires, decreased power, and increased fuel consumption. It is recommended to replace spark plugs according to the manufacturer’s guidelines to ensure optimal engine operation and longevity.