Original Lexus Spark Plugs

What Does the Spark Plug Do?

The primary function of a spark plug is to produce the electrical spark that triggers the ignition of the air-fuel mixture in the combustion chamber of the engine. Here's how it works and why it matters:

1. Ignition

   To start your car or power equipment, the air and gasoline mixture is pulled into the cylinders. The mixture then needs to be ignited to initiate combustion and drive the engine forward.

2. Electrical Spark

   The spark plug ignites the engine's ignition system. An electrical current passes through the spark plug and creates a spark when an electrical current is sent through it.

Other Consumable Parts

Vehicle consumables are components that need to be routinely replaced when they are worn or malfunctioning to preserve engine performance. The following components include, but are not limited to:

• Oil Filters: These filters should ideally be replaced with every oil change.
• Tires: Tires need to be replaced, especially when they're visibly worn or have punctures or impact damage.
• Windshield Wiper Blades: To avoid windshield streaking and to improve visibility during inclement weather, wiper blades need to be replaced regularly.
• Brake Pads: Brake pads get worn and thin over time and need to be replaced to preserve stopping or slowing power.
• Air Filters: Clogged air filters need to be changed regularly to enhance airflow to the engine.

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