Direct OEM Replacement: This crankcase ventilation (CCV) filter is a direct fit replacement for Ford OEM part numbers GC4Z-6A777-A, GC4Z-6A777-B, GC4Z6A777A, FL-2077, FL2070, GC4Q6A777AB, and Dorman 904-702. It is engineered to meet or exceed OE specifications for optimal oil separation and crankcase ventilation performance.
Fits 6.7L Powerstroke Diesel Models: Specifically designed for Ford F-250, F-350, F-450, F-550 Super Duty (2017-2019) and Ford F-650, F-750 (2016-2019) equipped with the 6.7L Powerstroke V8 diesel engine. Note: This is for the serviceable CCV system only (typically DRW models).
Critical Compatibility Check (DRW vs. SRW): Fits Dual Rear Wheel (DRW) models with a serviceable filter housing. Does NOT fit Single Rear Wheel (SRW) models where the CCV filter is integrated into the valve cover and not designed for separate replacement. Always verify your truck has a removable black plastic housing with bolts on top of the engine before purchasing.
Easy Maintenance: Simple "remove and replace" service. No tools required for the filter element itself (once the housing cover is unbolted). Installation Tip: Ensure the old filter gasket is removed and the housing is clean before inserting the new filter to prevent leaks.