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Rubber breather/PCV grommets are used as a seal between the valve cover and a breather or PCV.
You will need the grommet when using any valve cover with a breather or PCV.
Fits valve covers with a 1-1/4" diameter push-in hole.
Outer Diameter: 1-1/4".
Inner Diameter: 1".
Rubber breather/PCV grommets are used as a seal between the valve cover and a breather or PCV. You will need the grommet when using any valve cover with a breather or PCV. Fits valve covers with a 1-1/4" diameter push-in hole. NOTE: Breather/PCV grommets must be cut before use. Outer diameter: 1-1/4". Inner diameter: 1".