Guide bracket bolt. Left.lower. PartQualifier: lower. Right.lower. A threaded rod with a drive head (such as hex, 12 point, torx, etc) on one end used to secure the Engine Coolant Outlet Housing or related components. Exhaust Gas Recirculation (EGR) Tube Bolt. Seat Belt Height Adjuster Bolt. M8 X. /SCREW -. EGR pipe. Engine Coolant Outlet Housing. Exhaust Gas Recirculation (EGR) Tube. Guide bracket. Seat Belt Height Adjuster. Thermostat outlt stud. Water outlet mount.