3924 Spark Plug 3924/4 Copper

Experience unparalleled performance with the 3924 Spark Plug 3924/4 Copper. Designed for reliability and efficiency, this spark plug is engineered to meet the demands of both everyday driving and high-performance applications.

Key Features:

• Copper-Glass Seal: The innovative copper-glass seal creates a strong bond between the insulator and terminal post center electrode, ensuring full required voltage reaches the spark gap.
• Gas-Tight Seal: Experience peace of mind with a 100% leak-proof design that prevents gas leakage.
• Multi-Rib Insulator: The advanced multi-rib design minimizes the risk of “flash-over,” promoting safer operation.
• One-Piece Terminal Post: This feature enhances the plug's strength and durability, making it a reliable choice for various vehicles.
• Resistor Technology: Built-in resistor reduces radio frequency interference (RFI) and electrode erosion, ensuring a cleaner and longer-lasting performance.
• Cold-Formed Steel Shell: The precision rolled threads of the cold-formed steel shell contribute to enhanced durability and reliability.
• Full Copper Core Electrode: Provides superior performance across all conditions, making it ideal for diverse driving scenarios.

Before making your purchase, we recommend verifying all cross-reference listings to ensure compatibility with your vehicle.