Bosch 0242135509, YR7MPP33 Mercedes-Benz Spark Plugs Platinum Plug Set Bosch OEM (6 pcs) 100% NEW Genuine Bosch Spark Plug Set (6 pcs.) Bosch #'s: 0 242 135 509 / YR7MPP33 / 7424 Mercedes Benz OE #s: 004 159 18 03 / 0041591803