U-Groove Spark Plug — W16FS-U View cart “Iridium Spark Plug — IU24” has been added to your cart. $2.95 PART NUMBER: W16FSURMM PART: W16FS-U BRAND: DENSO NC NY TX WI NV 0 0 0 0 0 W16FSU,W16FS-U,DENSO please contact sales at (800)482-4899 to place your order. SKU: 3034 Category: DENSO Features 100 percent pre-fired to ensure reliable operationCopper core center electrode for superior thermal conductivityUnique five-rib insulator reduces flashover and decreases voltage lossDual copper and glass seal bonds the center electrode and insulator together for a gas-tight seal.Original Equipment in automotive applications Related products Iridium Spark Plug — IW20Iridium Spark Plug – IW20 $11.95 PART NUMBER: IW20RMM PART: IW20MANUFACTURER NAME: DENSO NC NY TX WI NV 2 1 5 11 6 Add to cart U-Groove Spark Plug — X22EPR-U9Spark Plug – X22EPR-U9 $3.95 PART NUMBER: X22EPRU9RMM PART: X22EPR-U9MANUFACTURER NAME: DENSO NC NY TX WI NV 19 15 20+ 20+ 0 Add to cart U-Groove Spark Plug — W24FS-USpark Plug – W24FS-U $2.95 PART NUMBER: W24FSURMM PART: W24FS-UMANUFACTURER NAME: DENSO NC NY TX WI NV 20+ 0 0 0 0 Add to cart U-Groove Spark Plug — W20ES-USpark Plug – W20ES-U $2.95 PART NUMBER: W20ESURMM PART: W20ES-UMANUFACTURER NAME: DENSO NC NY TX WI NV 0 20+ 0 9 2 Add to cart