Polished Breather Plain

The Polished Breather Plain from Billet Specialties is a precision-engineered ventilation component designed for high-performance engine applications. This push-in breather fits a 1-1/4 inch hole and serves a critical function in engine bay systems where crankcase pressure relief and air circulation are essential. Whether you're building a custom hot rod, classic car restoration, or street performance engine, this component provides clean, professional aesthetics while managing engine breathing efficiently.

Constructed from aluminum and finished in a polished surface, the Polished Breather Plain combines durability with a refined appearance that complements show-quality engine bays. The round design and push-in installation method make it straightforward to integrate into existing valve covers or custom fabricated panels without requiring complex fastening hardware. At just 0.41 lbs, it adds minimal weight while providing the structural integrity and corrosion resistance that aluminum offers in performance environments.

This breather is ideal for automotive enthusiasts, engine builders, and restoration specialists who demand both form and function. The compact dimensions (5.3 x 2.7 x 5.95 inches) allow flexible positioning in tight engine compartments, making it suitable for a wide range of vehicle platforms. Installation is quick and non-invasive; simply position the breather in your prepared hole and secure it with the push-in design. For anyone seeking a polished finishing touch to their engine ventilation system without sacrificing performance, this Billet Specialties component delivers reliable results.