
4063 Spark Plug 4063/4 Copper
4063 Spark Plug 4063/4 Copper Experience superior performance with the 4063 Spark Plug. Engineered with precision and reliability in mind, this spark plug is an essential component for optimal engine functionality. Here are some of its standout features: Copper-Glass Seal: Provides a robust bond between the insulator, terminal post, and center electrode, ensuring a gas-tight seal that is 100% leak-proof. Voltage Assurance: Designed to deliver full required voltage at the spark gap for efficient ignition. Multi-Rib Insulator: Reduces the risk of "flash-over," enhancing safety and reliability during operation. One-Piece Terminal Post: Increases strength and durability, making it a long-lasting choice for your engine. Resistor Technology: Minimizes radio frequency interference (RFI) and reduces electrode erosion, contributing to a longer lifespan. Cold-Formed Steel Shell: Features precision rolled threads for easy install