Cat® Oil Separator for separating and collecting lubrication oil contained in blow-by gas of an internal combustion engine. The separator is formed in the cylinder-head cover of the engine and incorporates a porous filter or filters made of foam metal for absorbing oil constituents in the blow-by gas. Our filter elements help prevent damage to your lubrication system and keep your machinery performing at optimum levels. Designed and manufactured by the same company that makes your Cat® iron, we are committed to the long-term integrity of your equipment. Designed to the exact specifications of your Cat® equipment, genuine Cat® filters are a crucial factor in your machines ability to use oil efficiently. A clean filter element protects internal mechanisms from being damaged by dirt.Application:Cat® Engine Oil Separators are used in Cat® engines. Consult your owner's manual or contact your local Cat® Dealer for more information.