Engine Air Filter — Original Equipment Part Number 57MD42M Overview This engine air filter is a direct replacement part carrying the original equipment part number 57MD42M. It is designed to fit the Donaldson ECG11 housing and restore correct fit, seal, and airflow for compatible engines and equipment. Key benefits Protects engine components by removing dust and airborne particles from incoming air, helping prevent premature wear. Restores proper airflow and filtration performance through a correct fit to the ECG11 housing, supporting efficient engine operation. Fits original equipment specifications for dimensions and sealing, making installation straightforward and reducing the risk of improper fit. Helps maintain maintenance schedules by providing a reliable dropin replacement when the installed filter reaches service intervals. Important attributes Function: Filters intake air to reduce contaminant entry into the engine. Compatibility: Original Equipment Part Number 57MD42M; fits Donaldson ECG11 housing. Fit and installation: Engineered as a direct replacement for the specified part number and housing to ensure correct sealing and alignment. Performance: Designed to meet original equipment filtration and airflow requirements for the specified application. Typical applications and use scenarios Scheduled maintenance: the existing filter during routine service intervals to maintain engine performance and reduce risk of component contamination. Dusty or particulateprone environments: Use as a replacement in equipment operating in construction, agricultural, or offroad settings where increased airborne debris is common. Equipment or overhaul: Install when repairing engines or replacing the ECG11 housing filter element to ensure the system returns to factoryspecified operation. Notes This description refers to compatibility with the Donaldson ECG11 housing and the original equipment part number 57MD42M. Confirm fitment with your equipment documentation or service manual before .