U-Groove Spark Plug — W16FS-U View cart “U-Groove Spark Plug — W20ES-U” 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 — IU24Iridium Spark Plug – IU24 $14.95 PART NUMBER: IU24RMM PART: IU24MANUFACTURER NAME: DENSO NC NY TX WI NV 11 1 4 20+ 15 Add to cart 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 — W27ES-USpark Plug – W27ES-U $2.95 PART NUMBER: W27ESURMM PART: W27ES-UMANUFACTURER NAME: DENSO NC NY TX WI NV 2 6 17 0 0 Add to cart Iridium Spark Plug — IW16Iridium Spark Plug – IW16 $11.95 PART NUMBER: IW16RMM PART: IW16MANUFACTURER NAME: DENSO NC NY TX WI NV 0 0 0 0 0 Sorry Out of stock