WIX Racing Filters 42239 Heavy-Duty High-Efficiency Air Filter

The WIX Racing Filters 42239 is a heavy-duty air filter engineered for premium filtration performance. Built to meet or exceed OEM air filter change intervals, this filter delivers reliable engine protection with a minimum contaminant removal efficiency of 99.9% per ISO 5011 laboratory testing standards.

Key Features:

• Premium Filtration Media – High-quality filter media engineered for superior dust and contaminant capture
• Skip-A-Pleat Media Stabilization – Where applicable, this design keeps pleats evenly spaced for consistent airflow and filtration efficiency
• Pleat Stabilization Beads – Prevents pleat collapse under varying pressure conditions, maintaining peak performance throughout the filter's service life
• Polyurethane End Caps – Durable, high-strength end caps provide a secure seal and resist corrosion for long-lasting reliability
• Expanded Metal Body – Corrosion-resistant expanded metal construction adds structural rigidity and durability under demanding conditions
• OEM Replacement Intervals – Designed to match factory-recommended service intervals, making it a direct drop-in replacement
• ISO 5011 Tested – Minimum 99.9% filtration efficiency verified through standardized air filter laboratory testing

The WIX 42239 heavy-duty air filter is part of WIX's trusted HD filter line, known for combining industrial-grade construction with precise filtration. Whether used in racing applications or high-demand daily environments, this filter helps protect engine components from harmful airborne contaminants while maintaining proper airflow.