Upgrade your Zetec or ST170 engine’s crankcase ventilation with our precision CNC-machined and anodised aluminium breather — engineered for performance, reliability, and a flawless fit.
Machined from high-grade 6082 aluminium and now anodised for enhanced corrosion resistance and a premium finish, this breather is built to withstand demanding road, track, and high-boost conditions.
Featuring an M16 threaded port, it accepts a wide range of AN-style or quick-release fittings, giving you full flexibility when designing or upgrading your breather or catch-can system. (AN fitting not included.)
For optimal performance, this breather should be used with a proper catch-can or separator setup, ideally one that drains back into the sump to maintain consistent crankcase ventilation and reduce oil loss.
Unlike gasket-style breathers, this unit uses a precision-machined O-ring groove, ensuring a clean, gasket-free, leak-free seal every time.
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Key Features
Precision CNC-machined from 6082 aluminium
Anodised finish for durability and corrosion resistance
M16 thread for AN or quick-release fittings
Integrated O-ring groove for gasket-free sealing
Lightweight, strong, and long-lasting
Direct bolt-on for Ford Zetec & ST170 engines
Ideal for turbo, N/A, and track builds
Perfect for RWD Zetec/ST170 conversions
Designed for use with a catch-can/separator system, ideally draining back to the sump