As low as $64.75/mo with or . (Pay in 4 interest-free payments)
MOROSO Air/Oil Separator Keep your Harley‑Davidson running cleaner and longer. The MOROSO Air/Oil Separator (catch can) filters crankcase vapors, oil mist and condensation before they re-enter the intake—protecting the air filter, throttle body, intake tract, pistons and valves from excessive oil and carbon buildup. Key Benefits Improved engine cleanliness: Captures oil, un‑burnt fuel and moisture that would otherwise coat intake components and promote deposits. Better performance & longevity: Reduces detonation and knock by keeping combustion chambers and intake ports cleaner. Closed‑system design: Re‑circulates filtered air back into the intake—does not vent to atmosphere, keeping oil off your bike and the ground. Easy maintenance: Two‑piece body unscrews for quick draining and cleaning; service can coincide with regular oil changes. Quality & heritage: Proudly made in the U.S.A. by MOROSO. Why Choose MOROSO The MOROSO Air/Oil Separator is engineered specifically for H‑D breather systems and differs from generic breather kits by actively separating and collecting contaminants while allowing only clean air to recirculate. Install inline with the breather system to protect engine components and maintain peak performance.
From the factory, a motorcycle's breather system vents excess crankcase vapors, un-burnt fuel, residual oil and moisture back into the intake which compromises performance and durability.
Plumbs inline of the breather system and filters the excess crankcase vapors, exhaust vapors, residual oil and moisture before it re-enters the engine, reducing detonation, knock and helps rid deposits in the intake tract including valves and pistons
The two piece body of the air-oil separator/catch can system unscrews for easy cleaning and service.
The Moroso air-oil separator/catch can system does not vent to atmosphere like other breather kits on the market, this keeps oil in the canister, off your bike, and more importantly off the ground!