Feature●【Replaces OE Part Number 】21679517,22999818, 21975949, 21975959, 9421679517, 9422999818, Volvo-D11 21679517 , Mack MP7 22999818●【Compatible Vehicle】 Crankcase Ventilation Oil Separator Compatible with Volvo-D11 2007-2022 and Volvo Mack MP7 2006-2022.●【Operating Principle】The crankcase ventilation system allows blow-by gases to escape from the crankcase without causing damage.●【Professional performance】Our products use high-quality raw materials and undergo strict testing, which can perfectly match the original model.●【Warranty】The Proxlex crankcase ventilation separator has a one-year warranty period. If there are any issues with the crankcase ventilation separator, please feel free to contact us. We will reply to you within 24 hours.Description