Feuling Vented Dipstick Kit - 2006-2017 Dyna Models - Polished

This breathing dipstick removes unwanted build-up of blow by, which is found in engines with excessive leakdown through the rings/cylinders which is a common issue with large displacement big bore engines Test results show a decrease in engine sump oil levels Dipstick vents excessive pressure from the oil tank through a breather system consisting of a filter element and umbrella valve Choose from two venting style options when installing the dipstick Option 1 is to use the 1/8 NPT breather vent fitting with internal porous filter element (this option gives a clean look; however it can produce an oil misting/residue out of the element on engines with excessive leakdown/blow by) Option 2, is to use quick-disconnect coupler fitting with rubber hose and filter element (this option will run any excessive oil misting/residue through the line and into the filter element, but does requires disconnecting the fitting in order to check the oil) For option 2, we recommend routing the line up the f