4303 Spark Plug 4303/4 Copper

Unlock the power of your engine with the 4303 Spark Plug 4303/4 Copper. This premium spark plug is designed for optimal performance, ensuring your vehicle runs smoothly and efficiently under all conditions.

Key Features:

• Copper-Glass Seal: The innovative copper-glass seal bonds the insulator, terminal post, and center electrode, guaranteeing a full voltage supply at the spark gap and ensuring a gas-tight seal that is 100% leak proof.
• Multi-Rib Insulator: Reduces the risk of “flash-over,” enhancing reliability and performance.
• One-Piece Terminal Post: This adds substantial strength, providing durability for long-term use.
• Resistor Design: Minimizes radio frequency interference (RFI) and electrode erosion, allowing for enhanced performance and longevity.
• Cold-Formed Steel Shell: Features precision rolled threads that ensure a perfect fit and easy installation.
• Full Copper Core Electrode: Delivers superior performance in a range of conditions, enhancing the ignition process.

Ensure you verify all cross-reference listings before purchase to confirm compatibility with your vehicle. Experience a reliable ignition with the 4303 Spark Plug – your key to a well-performing engine!