The U-Groove Spark Plug is engineered to deliver OE performance with exceptional durability, lasting twice as long as most conventional plugs. Featuring an OEM-specified special ground electrode configuration, it ensures optimal ignition and reliable operation. The precision machine-rolled threads minimize the risk of seizing or cross-threading, making it ideal for delicate aluminum heads. With a flat seat type and nickel center electrode tip material, this spark plug is built for consistent performance across a wide range of applications, including classic and collector cars. Pre-fired for reliability, it offers a dependable solution for maintaining engine efficiency. Designed to meet OEM quality standards, this spark plug is a smart investment for long-lasting performance and compatibility with thousands of vehicles.

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