Denso W9LM-US U-Groove Spark Plug for Better Combustion and Fuel Efficiency

The Denso W9LM-US U-Groove Spark Plug is engineered to enhance your vehicle's combustion efficiency and fuel economy. This innovative spark plug features a unique U-Groove ground electrode design, ensuring more complete combustion and improved performance. Designed specifically for automotive use only, do not use in aircraft.

• U-Groove Ground Electrode: The U-Groove ground electrode design allows the flame a groove to grow in, resulting in less flame dissipation and a larger flame front for more complete combustion.
• Machine Rolled Threads: The spark plug threads are machine rolled to prevent seizing or cross-threading during installation and removal, ensuring smooth maintenance.
• 100% Pre-fired: Each spark plug is 100% pre-fired to assure the highest quality possible, providing reliable performance from the start.
• Purified Alumina Powder Insulator: The spark plug features a purified alumina powder insulator that offers exceptional strength and thermal conductivity.
• Five Rib Insulator: A five rib insulator design prevents flashover, adding an extra layer of safety and reliability.
• Copper-Glass Seal: The copper-glass seal bonds the center electrode and insulator for a gas-tight seal, ensuring consistent performance.

Why Buy the Denso W9LM-US U-Groove Spark Plug?

When it comes to upgrading your vehicle's ignition system, the Denso W9LM-US U-Groove Spark Plug is an excellent choice. The unique U-Groove design significantly enhances the combustion process, leading to improved fuel efficiency and better throttle response. With machine rolled threads, you can avoid the hassle of seizing or cross-threading during installation. The 100% pre-fired assurance guarantees top-notch quality, and the purified alumina powder insulator ensures outstanding durability and heat resistance. The five rib insulator offers added protection against flashover, while the copper-glass seal provides a reliable, gas-tight bond. Trust Denso's innovative design and premium materials to deliver superior performance and reliability. For automotive use only, do not use in aircraft.