Moroso 85513 Air Oil Separator Billet Aluminum PCV System

The Moroso 85513 Air Oil Separator is a high-performance engine protection device designed to be plumbed into your vehicle's PCV (Positive Crankcase Ventilation) system. This separator captures excess crankcase vapors and residual oil mist, preventing them from re-entering the intake tract where they can cause detonation and harmful oil deposits on intake valves and manifold surfaces.

Key Features:

• Billet aluminum construction for durability and visual appeal—can be polished, chromed, or powder coated for a custom appearance
• Includes two 3/8" 90-degree inlet and outlet fittings for easy installation
• Complete installation kit with 60" of 3/8" rubber hose for inline plumbing
• Billet aluminum mounting clamp and bracket for secure installation
• Bottom drain with elbow fitting for virtually mess-free oil collection and disposal

By removing oil vapors before they reach the intake manifold, this air-oil separator helps maintain cleaner intake components, reduce carbon buildup, and preserve optimal engine performance. The factory PCV system recirculates these contaminants directly back into the combustion chamber, but the Moroso 85513 provides an effective solution to intercept and collect them before they can cause problems.