Oil Separators

Oil Separators & Air-Oil Separator Systems

Oil separators capture oil mist and blow-by vapors from the crankcase ventilation system, returning clean oil to the engine while venting only clean air. More advanced than simple catch cans, oil separators actively separate oil from air using baffles, centrifugal action, or coalescing media — keeping intake tracts clean and reducing carbon buildup on intake valves.

OneFastShop carries oil separators including air-oil separators (AOS), PCV oil separator systems, crankcase ventilation separators, and direct-fit and universal oil separator kits for turbocharged, direct-injection, and high-performance engine platforms.

Every oil separator at OneFastShop ships brand-new with manufacturer warranty coverage. Whether you're upgrading from a catch can to a full separator, protecting intake valves on a direct-injection engine, or cleaning up crankcase ventilation on a race build, OneFastShop has the separator. Shop the full oil separators collection today.