NGK standard spark plug is manufactured to enhance the performance of the vehicle. It is constructed from durable material that is corrosion and abrasion resistant. The spark plug insulators are made of 99 percent pure alumina silicate, allowing for longer insulator noses for reduced fouling. This spark plug features a triple gasket sealing process that eliminates fuel leakage. It also includes a solid copper core that provides superior heat dissipation and conductivity. This spark plug has Resistor that is produced with a glass and carbon mixture, which is fired to ensure superior performance and durability. It has corrugated ribs that prevent flash over and cold rolled threads to inhibit damage to the cylinder head. Product Overview Brand: NGK Core Material: Copper Thread Size: 12mm Top Material Type: Ceramic, Metal Vehicle Service Type: Car, Truck Product Features Solid Copper core for greater spark Longer insulator nose prevents fouling Corrugated ribs on insulator prevents flashover Zinc dipped shell prevents corrosion Triple gasket seal eliminates combustion gas leakage Product Information Brand Name NGK Manufacturer Part Number KR9E-G Global Trade Identification Number 00087295832264 UPC 087295832264 OEM Equivalent Part Number 296000421 Model Number KR9E-G Unit Count 1.0 Count Manufacturer Warranty Description Manufacturer Warranty Included Components Spark Plug (4) Item Type Name NGK 93226 KR9E-G STANDARD SPARK PLUG, 4 PACK Item Weight 5.76 ounces Manufacturer NGK Best Sellers Rank ASIN B079WVFH7Y Customer Reviews Thread Size 12mm Compatible with Vehicle Type Car, Truck Automotive Fit Type Vehicle Specific Fit Core Material Copper Top Material Type Ceramic, Metal