Genuine Ford OEM Crankcase Oil Separator Filter / CCV Assembly – LC3Z-6A785-C

Keep your 6.7L Powerstroke running clean and protected with the genuine Ford LC3Z-6A785-C Crankcase Oil Separator (also known as the CCV filter, oil/air separator, or crankcase breather assembly).

This OEM unit is a critical part of the closed crankcase ventilation system. It separates oil mist and contaminants from blow-by gases, returns the oil to the crankcase, and routes the cleaned vapors back into the intake. A properly functioning separator helps:

• Prevent oil from contaminating the intake tract and turbo
• Reduce carbon buildup and sludge
• Maintain correct crankcase pressure
• Minimize oil leaks at seals and gaskets
• Support better emissions performance and DPF longevity
• Avoid elevated crankcase pressure symptoms (oil cap “dancing,” hissing, or related DTCs such as P04DB)

Key Features

• Genuine Ford Original Equipment part (not aftermarket)
• Includes the integrated sensor
• Built-in check valve design to help control oil blow-by
• Direct-fit replacement that installs with the factory hardware
• Corrosion-resistant construction for long service life under diesel operating conditions

Fitment Primarily for 2019–2022 Ford Super Duty trucks with the 6.7L Powerstroke (F-250, F-350, F-450, F-550 and related chassis-cab applications).

Important note: Ford used multiple CCV designs across the 6.7L Powerstroke years and configurations (pickup vs. chassis cab, SRW vs. DRW). Always confirm the exact part number against your VIN or existing unit before ordering to ensure the correct revision.

Why choose the OE LC3Z-6A785-C? Factory-correct fit, finish, and sensor calibration. No guesswork with aftermarket units that may not seal or communicate properly with the PCM.

Replace a clogged or failing separator to restore proper crankcase ventilation and protect your investment in the 6.7 Powerstroke.