21122539 Crankcase Ventilation Oil Separator Fit D13 MP8 Engine 2008-2013 Heavy Duty Truck Aftermarket Replacement Part

OE 21122539 Oil Separator-Crankcase Ventilation is specially engineered for heavy-duty trucks equipped with D13 and MP8 engines manufactured from 2008 to 2013. It is not compatible with post-2014 updated engine versions.

This separator is produced strictly in accordance with OEM dimensional and performance standards. The internal multi-stage coalescing filter efficiently isolates oil mist from crankcase blow-by gas, effectively reducing engine oil consumption, avoiding turbocharger contamination and prolonging engine service life. All air ports, mounting brackets and sealing surfaces match factory original parts perfectly for direct bolt-on installation without cutting, grinding or modification.

Constructed with high-temperature resistant housing and durable long-life filter media, it can adapt to harsh long-haul transportation and heavy-load working environments. It is an ideal replacement for clogged, leaking or damaged original separators during engine maintenance. Please confirm your engine model and production year with sales before placing orders.