These remove dirt, dust and sand and other debris in the air that enter the engine. The compact nature of high-performance air cleaners enables maximum use of limited space inside the engine room.

Air drawn in from the throttle is dispersed to each engine cylinder. The use of plastic helps realise considerable weight reduction and facilitate use in a wide range of engines, from straight engines to horizontally opposed engines.

These cover the valve on top of the engine cylinder head and prevent engine oil and unburned gas from leaking. Fitted with an OCV (Oil Control Valve) that optimises the timing for opening and closing the valve for air intake and emission.

Secured fit dimensions with the OCV in one process via the insert molding OCV holder (made with alminium)

Air filters are located within the air cleaner housing to remove dirt, dust, sand and other debris carried from the air into the engine. They can be used with high-powered engines and help improve filtration performance and reduce pressure drop (reduced ventilation resistance).