AUXILIARY. Bracket bolt. Left.2.0 LITER PHEV. M6x55mm. PartQualifier: M6x55mm. Right.2.0 LITER PHEV. A threaded rod with a drive head (such as hex, 12 point, torx, etc) on one end used to secure the Supercharger Intercooler to it's Mounting point. Engine Mount Bolt. Radiator Mount Bolt. HEX. HEAD. Charge Air Cooler. Engine. Insulator. Intercooler. Radiator. Screw.