-8an Scavenge Filter

The -8an Scavenge Filter from Peterson Fluid is a critical component for high-performance engine builders and serious motorsports enthusiasts running aggressive crankcase ventilation systems. Whether you're building a turbocharged street engine, a circle-track racer, or a drift car that demands maximum horsepower extraction, this scavenge filter protects your engine bay from oil mist and contaminants while maintaining unrestricted airflow back to the pan. Designed to integrate seamlessly into custom fabricated catch-can and breather systems, it eliminates the need for atmospheric venting that would otherwise foul your intake tract and reduce combustion efficiency.

This compact -8AN fitting filter employs proven micron-rated media construction that separates entrained oil particles and moisture from scavenge gases without creating backpressure that could compromise crankcase evacuation. The lightweight design—just 0.23 lbs—minimizes added mass in your engine compartment while the small profile (2.85 x 1.55 x 5.45 inches) fits tight quarters common in engine bay layouts. Peterson Fluid's engineering ensures the filter element remains effective across a wide temperature range, critical when routing hot crankcase vapors through tight packaging during high-boost or high-RPM operation.

Most applicable to builders using custom catch-can systems, fuel-cell equipped race cars, or modified street engines with aggressive PCV tuning, this Peterson Fluid scavenge filter pairs perfectly with braided hose and -8AN fittings throughout your breather circuit. Installation requires only standard -8AN adapters and hose clamps—no special tools or fabrication expertise needed. For those serious about engine longevity and intake charge cleanliness in high-horsepower applications, this filter represents a cost-effective insurance policy against oil carryover contamination.