ABOUT THIS PRODUCT

The U-Groove Spark Plug features a patented U-groove ground electrode design that enhances ignitability, allowing for leaner fuel mixtures and improved engine efficiency. Crafted with precision machine-rolled threads, it minimizes the risk of seizing or cross-threading in delicate aluminum heads, ensuring a hassle-free installation. Built with a nickel center electrode tip and a tapered seat type, this spark plug delivers reliable performance across a wide range of applications, including classic and collector cars. Its durability is unmatched, lasting twice as long as most conventional plugs, and it is 100 percent pre-fired to guarantee consistent operation. Whether you're maintaining a daily driver or restoring a vintage vehicle, this spark plug offers OE-level performance and long-lasting value.

Product Features:

• Patented U-groove ground electrode design fires leaner mixtures than conventional plugs
• Precision machine-rolled threads reduce seizing and cross-threading in delicate aluminum heads
• Wide range of part numbers for thousands of applications, including classic and collector cars
• Lasts twice as long as most conventional plugs
• 100 percent pre-fired to assure reliable operation
• U-Groove Conventional