Seasonal Sale VW Secondary Air Pump Hose / Line (Phaeton) 3D0131849

The OEM secondary air pump hose (Connector Hose) with part number 3D0131849 plays a critical role in the secondary air injection system of the Volkswagen Phaeton, specifically models from 2004 to 2006 equipped with the 4.2L V8 engine. This hose connects the secondary air pump to the engine and facilitates the flow of air to reduce emissions during cold starts. Over time, this hose may deteriorate due to heat and pressure, leading to cracks or leaks. Symptoms of a failing hose can include increased emissions, rough idling, or check engine lights. Replacing a worn or damaged hose with this genuine OEM part ensures optimal system functionality and compliance with environmental standards. Alternate part numbers include 3D0201993AB and 3D0906517A for further compatibility.