Why this filter is needed: The ISB 6.7L diesel engine employs closed crankcase ventilation systems. If the filter is not serviced, a greasy would be built upon the compressor wheel. Then lowers the efficiency.
Filter Change Interval: The suggested change interval for the Crankcase Vent Filter is 67,500 miles or when a message is displayed on your overhead console alerts you that the Crankcase Vent Filter is now clogged.
Package includes 2 * CV52001 Crankcase Ventilation Filter(Not includes a 3999820 Crankcase Gasket).