2.0 LITER SKYACTIV. 27976. By-pass pipe o-ring. Engine Coolant Bypass Pipe O-Ring. O-Ring. Pipe to Lower Outlet Flange. Pipe to Water Pump. Water Pump Pipe. ''O'' - W. By - Passenger o -. Cross over o -. Engine Coolant Bypass O -. Water o -. Included with: By-pass Pipe, Cross over Pipe, Water Pipe.