Iridium Spark Plug — IW31 View cart “Iridium Spark Plug — IU27A” has been added to your cart. $24.95 PART NUMBER: IW31RMM PART: IW31 BRAND: DENSO NC NY TX WI NV 8 0 2 0 0 IW31,IW31,DENSO 10 in stock Iridium Spark Plug — IW31 quantity Add to cart SKU: 5319 Category: DENSO Features Six times harder than platinum, iridium withstands temperatures up to 4,000°FBecause the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves360° laser welding of electrode provides a seal that resists wear even in the worst conditionsGround electrode features a tapered cut and U-groove that form a large volume area for the flame's center Related products Iridium Spark Plug — IW20Iridium Spark Plug – IW20 $11.95 PART NUMBER: IW20RMM PART: IW20MANUFACTURER NAME: DENSO NC NY TX WI NV 2 3 5 11 6 Add to cart U-Groove Spark Plug — W22EP-USpark Plug – W22EP-U $2.95 PART NUMBER: W22EPURMM PART: W22EP-UMANUFACTURER NAME: DENSO NC NY TX WI NV 1 0 0 0 0 Add to cart Iridium Spark Plug — IU24AIridium Spark Plug – IU24A $14.95 PART NUMBER: IU24ARMM PART: IU24AMANUFACTURER NAME: DENSO NC NY TX WI NV 6 3 6 18 0 Add to cart Iridium Spark Plug — IX24Iridium Spark Plug – IX24 $14.95 PART NUMBER: IX24RMM PART: IX24MANUFACTURER NAME: DENSO NC NY TX WI NV 0 0 0 0 0 Sorry Out of stock