Donaldson P181126 Primary Air Filter Element

The Donaldson P181126 is a primary air filter element designed for heavy-duty filtration applications including agricultural equipment, construction machinery, trucks, and industrial engines. Engineered by Donaldson Filtration — a global leader in filtration technology — this filter delivers reliable protection against dust, dirt, and airborne contaminants that can accelerate engine wear.

Donaldson primary air filters utilize advanced filter media technology to provide high dirt-holding capacity while maintaining low restriction for optimal engine airflow and performance. The primary element serves as the main stage of filtration in a two-stage air cleaner system, working in conjunction with a safety/secondary element for maximum engine protection.

Key Features:

• Primary (outer) air filter element for heavy-duty applications
• High-efficiency filter media for superior contaminant capture
• High dust-holding capacity for extended service intervals
• Engineered for use in two-stage air cleaner systems
• Durable construction for demanding operating environments
• Direct OEM-style replacement for precise fit
• Manufactured by Donaldson, a trusted global filtration leader

The P181126 is a direct replacement filter element that installs without modification, making routine maintenance straightforward. Always replace or inspect the safety/secondary element when servicing the primary element to maintain full system protection.