NGK ILZKR7B11 Laser Iridium Spark Plug 12mm (0.47 inch) | High Durability for Faster Starts

• Laser welded Iridium center electrode tip ensures high durability and greater spark
• Platinum disc welded to backside of ground electrode provides long life
• Longer insulator nose prevents fouling, corrugated ribs on insulator prevents flashover, and the triple gasket seal eliminates combustion gas leakage
• Faster starts and quicker acceleration. Thread Size - 12mm. Thread Pitch - 1.25mm. Hex Size - 5/8 inch(16mm)
• Better fuel economy and lower emissions, trivalent metal plating for superior anti-corrosion and anti-seizing
• Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer

• Verify Fitment — Consult your vehicle's service manual to confirm the exact OEM part number and specifications (thread size, pitch, heat range, gap) match the NGK ILZKR7B11. Incorrect fitment can damage the engine.
• Prepare for Installation — Ensure the engine is cool. Use the correct size socket wrench (16mm hex) to carefully remove the old spark plug. Clean the spark plug well area to prevent debris from entering the cylinder.
• Install New Spark Plug — Thread the new NGK ILZKR7B11 spark plug in by hand to avoid cross-threading. Once finger-tight, use a torque wrench to tighten it to the manufacturer's specified torque setting (refer to your vehicle's manual).
• Reconnect Ignition — Attach the spark plug wire or ignition coil connector securely to the top of the new spark plug. Ensure it clicks into place. Start the engine to check for smooth operation.

Typical situations where NGK ILZKR7B11 Laser Iridium Spark Plug 12mm (0.47 inch) | High Durability for Faster Starts helps — illustrative scenarios, not customer reviews.