12 Screw In Breather

The Peterson Fluid 12 Screw In Breather is a precision engine ventilation component designed for high-performance and custom engine builds where crankcase pressure management is critical. This screw-in breather serves as an essential air passage control device, allowing trapped gases to exit the crankcase while preventing oil mist and contaminants from entering the engine.

Constructed from black anodized aluminum, this breather delivers corrosion resistance and durability in demanding engine environments. The screw-on design allows for installation into welded aluminum bungs, providing flexibility in custom engine bay layouts. The anodized finish protects against oxidation and heat stress, ensuring reliable performance across extended operating temperatures.

Street rod builders, vintage car restorers, and performance engine shops rely on Peterson Fluid breathers to handle the demands of modified and turbocharged powerplants. The 12 Screw In Breather integrates seamlessly into engine blocks and cylinder heads, optimizing breathing efficiency and engine longevity.