Engine Crankcase Breather Hose – Oil Reservoir to Air Filter Housing Engine Timing Cover Seal 0L4 Volkswagen Jetta 2005 1

0L4 Volkswagen Jetta 2005 1

The FTE Clutch Master Cylinder is a direct replacement for Porsche 911 (991)

0 TFSI quattro Audi A4 Allroad B8 (8KH) 2009–2012 3

or an intrusion between the cooling system and the engine's oil

6L4 Volkswagen Scirocco 1979–1980 1

Engine Crankcase Breather Hose – Oil Reservoir to Air Filter Housing Engine Timing Cover Seal 0L4 Volkswagen Jetta 2005 1Engine Crankcase Breather hoses are part of a vehicles Positive Crankcase Ventilation (PCV) system. The job of the PCV system is to allow pressure to escape from the crankcase in a controlled manner. It is necessary to vent the crankcase of positive pressure caused by engine blow by (gas from the combustion event that leaks past the pistons.) This blow by gas is routed back into the intake air stream thereby reducing the emission of unburned