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DESCRIPTION
This hose connects from the top front of the cylinder head to the thermostat. Over time, rubber hoses can become hard, with the internal walls covered in sediment and the plastic fittings turning brittle or the internal o-rings simply leaking. A must replace hose for any owner of a 135i or 335i looking to preventively maintain or restore their cooling system.
PART NUMBERS
Please note: Part numbers are provided for reference only. For correct compatibility to your vehicle, please follow our fitment advice