Daihatsu S321W Iridium Spark Plugs - Set of 3 SXU20HPR11 These are DENSO IRIDIUM spark plugs removed from a Hijet. Engine Type: KF Mileage: 52,000 km I replaced them with new ones, but judging by the plug gap compared to the new ones, they haven't changed much, so they seem to still be usable. They have the same performance as NGK Iridium part number ILKR6F11 92600. I think they can also be used in Daihatsu OEM vehicles like the Subaru Sambar. I cannot confirm compatibility or size, so please research this yourself before purchasing. They will be shipped via Yu-Packet Post.