E3 Spark Plugs - E3 Spark Plug (Automotive)

The E3.42 Spark Plug is engineered with E3's patented DiamondFIRE electrode technology, delivering superior combustion efficiency. This design promotes a faster and more complete burn of the fuel mixture, resulting in increased power output, enhanced fuel economy, and reduced emissions. Ideal for domestic vehicles from the 1980s to early 1990s, the E3.42 ensures reliable performance and durability. Its three-legged electrode configuration provides excellent heat transfer and stability, while the full-size center electrode guarantees consistent ignition. Pre-gapped at the factory for easy installation, this spark plug is a dependable choice for drivers seeking improved engine performance and efficiency.