4173 Spark Plug 4173/4 Copper

Experience unparalleled performance with the 4173 Spark Plug. Engineered for excellence, this spark plug is designed to deliver reliability and efficiency, making it the perfect choice for your engine needs.

Key Features:

• Copper-Glass Seal: The innovative copper-glass seal effectively bonds the insulator, terminal post, and center electrode, ensuring optimal voltage delivery at the spark gap.
• Gas-Tight Seal: Achieve peace of mind with a 100% leak-proof design that guarantees a gas-tight seal.
• Multi-Rib Insulator: Reduces the risk of “flash-over,” enhancing the durability and safety of your engine.
• One-Piece Terminal Post: This design adds strength and stability, ensuring long-lasting performance under various conditions.
• Resistor Technology: The built-in resistor minimizes radio frequency interference (RFI) and reduces electrode erosion for extended lifespan.
• Cold-Formed Steel Shell: The precision rolled threads on the steel shell provide a secure fit and enhance overall durability.
• Full Copper Core Electrode: Guarantees superior performance in all conditions, giving your engine the boost it needs.

Before making a purchase, we recommend verifying all cross-reference listings to ensure compatibility with your vehicle. Upgrade your ignition system with the 4173 Spark Plug for a reliable and efficient engine performance!