Baldwin PA2978 Axial Seal Air Filter Element Heavy-Duty Replacement The Baldwin PA2978 Axial Seal Air Filter Element is engineered to deliver superior filtration performance for heavy-duty applications, effectively preventing airborne contaminants from entering the engine’s combustion chamber. This ensures optimal engine efficiency and longevity. Key Features Axial Seal Design: Equipped with securely affixed metal end caps and a raised gasket, the axial seal design ensures a proper seal, preventing leaks and enhancing filter reliability. Heavy-Duty Construction: Built to withstand demanding conditions, this filter is suitable for various heavy-duty applications, including buses and construction equipment. Easy Maintenance: The design allows for straightforward removal and replacement, facilitating efficient maintenance routines. Specifications Outside Diameter: 5 1/2 inches (139.7 mm) Inside Diameter (Bottom): 3 1/8 inches (79.4 mm) Overall Height: 4 27/32 inches (123.0 mm) Filter Type: Axial Seal Air Filter Shape: Round Media Material: Cellulose, Paper Compatible Vehicle Types: Buses, Construction Equipment The Baldwin PA2978 is designed to meet the rigorous demands of heavy-duty environments, providing reliable protection against contaminants and contributing to the overall performance and durability of your equipment.