SPARK PLUGS

Technical information

Spark Plug Anatomy / Construction

Resistor Spark Plugs

Precious Metal Spark Plugs

Spark Plug Installation

LPG Compatibility

Operating Temperature

Heat Range Explanation

Projection

Electrode Gap

Electrode Gap Adjustment

Modified / Performance Engines

Spark Plug Analysis

Technical information

Spark Plug Anatomy / Construction

Although the spark plug is a familiar engine component, spark plug terminology often varies. The diagram below identifies the major components of a spark plug and their correct terminology.