Bolt. 20F. 36D. A / C Compressor. Belt Tensioner. For The Engine Coolant Pipe. that fastens Heater Hose to Vehicle. Dummy. Engine Coolant Bypass Pipe. Engine Oil Filler Tube. Fastener that secures The Engine Oil Fill Tube in place. Flange. HVAC Heater Hose. Turbocharger Mounting. Turbocharger Oil Line.