New OEM Nissan Spark Plug Tube Seals for all 300zx models.
These are the rubber tube seals that are located at the bottom of the Spark Plug Ornament Cover that is found under the Upper Intake Manifold. Whenever changing valve cover gaskets, these Spark Plug Ornament Covers must be removed. These seals are often lost or damaged due to heat and exposure.
These seals protect the spark plugs from being flooded with engine oil in the event that the valve cover gaskets fail.
We offer these Tube Seals either individually or in a set of 6.