Dorman 42066
Rubber PCV valve grommet for classic Ford / Lincoln / Mercury systems. Approx. 17.27 mm inside diameter.
Dorman 42066 is a rubber PCV valve mounting grommet for classic Ford, Lincoln and Mercury crankcase ventilation systems. It seals the PCV valve in the valve cover or mounting hole, helping prevent vacuum leaks and oil vapor seepage.
Application / fitment
This grommet fits selected Ford 1968–1986, Lincoln 1968–1984 and Mercury 1968–1985 applications when the valve diameter and mounting hole match. For this type of part, dimensions and seating style are more important than engine family alone because similar engines may use different valve covers.
- Ford — selected models 1968–1986
- Lincoln — selected models 1968–1984
- Mercury — selected models 1968–1985
- PCV systems in classic gasoline engines
Clean the mounting hole before installation and remove any hardened rubber residue. The new grommet should sit firmly and seal the PCV valve tightly.
Technical information
- type: PCV valve mounting grommet
- material: rubber
- inside diameter: approx. 0.68” / approx. 17.27 mm
- outside diameter: approx. 1.39” / approx. 35.31 mm
- thickness: approx. 0.38” / approx. 9.65 mm