Porsche Engine Crankcase Breather Hose 948-107-245-02 – OEM 9004 Hitachi’s precise manufacturing delivers reliable

Hitachi’s precise manufacturing delivers reliable OE-level performance

5L6 BMW 525i 2004–2005 2

high pressure

as they tend to pull apart when the pan is removed and are set to the pan and transmission case when the bolts are tightened down

Porsche Engine Crankcase Breather Hose 948-107-245-02 – OEM 9004 Hitachi’s precise manufacturing delivers reliableEngine 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