Hose connecting the upper radiator to the flange on the cylinder head.  Includes small overflow hose and Y connection.

This hose is known to develop leaks at the connection to the cylinder head.  Engine vibrations. wear down the o-ring inside the hose, flattening it out, until it can no longer seal.  The o-rings are pre-installed on the hose and are not available seperately.

We recommend replacing the flange, this hose and the smaller hose that also attaches to the cylinder head flange at the same time.