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VW Engine Crankcase Breather Hose 021103474 – Genuine VW/Audi

VW Engine Crankcase Breather Hose 021103474 – Genuine VW/Audi

GENUINE VW/AUDI

Stock: Out of Stock This item is currently unavailable. Check back later.

SKU 021103474
Sold out
$82.28 - $82.28
$82.28
$82.28 - $82.28
$82.28

We show live inventory for in-stock items. Products may sell out due to high demand but are restocked regularly. Out-of-stock items can still be ordered and usually arrive within a few weeks.

Engine Crankcase Breather hoses are part of a vehicle’s 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 hydrocarbons into the atmosphere. Damaged crankcase breather hoses are a common source of engine vacuum leaks and often a source of check engine lights in modern vehicles.

This part also goes by the following cross reference.

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