Engine L6, Engine Size 3.0L/2962cc Engine Family Mercedes-Benz inline 6-cylinder Original equipment manufacturer approved. Increased fuel economy and lower emissions. Shorty Spark Plug: No. Resistor: Yes. Manufacturer Heat Range: 5 Sold In 6 Pack NGK V-Power spark plugs offer economical performance for nearly any automotive application-and they're the only plugs with NGK's V-Groove technology.