Gold Oil Sep./Breather

The Gold Oil Separator/Breather by MOROSO (SKU MOR68780) is an essential component for serious engine builders and modified vehicle enthusiasts who demand precision crankcase ventilation. This push-in breather eliminates problematic pressure buildup in high-performance engines, particularly those running elevated boost levels, aggressive camshafts, or extended rpm ranges where factory PCV systems fall short. Whether you're building a street machine, forced-induction platform, or race-prepped engine, a quality oil separator addresses real-world oiling issues that can compromise seal integrity and engine longevity.

MOROSO's engineering separates crankcase vapors and oil mist from exhaust gases through internal baffling and cyclonic separation technology, allowing clean air to return to the intake while directing oil back to the pan. The gold anodized aluminum construction resists corrosion and heat while keeping component weight minimal—critical for engine bay real estate and thermal management. The compact 4.35 x 4.35 x 5.7-inch footprint integrates easily into tight custom installations, and the push-in design requires no complex plumbing or adapters, making this a straightforward bolt-on upgrade that significantly improves crankcase breathing efficiency.

This separator benefits turbocharged, supercharged, and naturally aspirated engines experiencing excessive blow-by or owners retrofitting modern PCV systems into classic muscle cars and vintage platforms. Installation is direct—no special tools required—making it accessible to builders of all skill levels. Weighing just 0.5 lbs, the MOROSO Gold Oil Separator/Breather pairs well with custom catch-can systems and standalone PCV configurations, ensuring your engine runs cooler, cleaner, and more reliably under sustained load or competition conditions.