Porsche Engine Crankcase Breather Hose 948-107-245-02 – OEM D3 A8 Fuel Pressure Regulation: Maintains correct

Fuel Pressure Regulation: Maintains correct fuel pressure for efficient engine operation and reduced emissions

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This product also goes by these part numbers: 94610723077

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Porsche Engine Crankcase Breather Hose 948-107-245-02 – OEM D3 A8 Fuel Pressure Regulation: Maintains correctEngine 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