Feuling, oil tank breather kit. Black. TouringBlack cap. Touring models have the oil tank mounted under the transmission. The engine; with two massive pistons going up and down; breathes in to the oil tank. This system is a way to vent the oil tank to help reduce pressure build up and reduce power robbing pressures and stops dipstick blow out. Comes as complete kit with filter; braided clear PVC covered lines and; if required; gaskets. Note: Early Touring models require dipstick housing removal.