The U-Groove Spark Plug is engineered to deliver OE performance and exceptional durability, lasting twice as long as most conventional plugs. Featuring an OEM-specified special ground electrode configuration and a nickel center electrode tip, it ensures reliable ignition and optimal performance. Precision machine-rolled threads minimize the risk of seizing or cross-threading, making it ideal for delicate aluminum heads. Its flat seat type and U-Groove design enhance combustion efficiency, while the wide range of part numbers makes it compatible with thousands of applications, including classic and collector cars. Pre-fired for 100% reliability, this spark plug is a dependable choice for those seeking long-lasting, high-quality performance.

Product Features:

• OEM specified special ground electrode configuration
• 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