ABOUT THIS PRODUCT

The U-Groove Spark Plug features a patented U-groove ground electrode design that enhances ignitability, allowing it to fire leaner fuel mixtures for improved engine efficiency. Built with a nickel center electrode tip and a tapered seat type, this spark plug ensures optimal performance and a secure fit. Its precision machine-rolled threads minimize the risk of seizing or cross-threading, making it ideal for use in delicate aluminum heads. Designed to last twice as long as most conventional plugs, it offers exceptional durability and value. With a wide range of part numbers available, it is compatible with thousands of applications, including classic and collector cars. Each plug is 100 percent pre-fired to guarantee reliable operation, making it a dependable choice for maintaining OE performance. Whether you're seeking efficiency, longevity, or compatibility, this U-Groove spark plug delivers on all fronts.

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