Bosch 5257WS Workshop Engine Air Filter

The Bosch 5257WS Workshop Engine Air Filter delivers professional-grade filtration performance to protect your engine from harmful contaminants. Designed for the professional installer market, this replacement air filter combines advanced engineering with high-quality materials to ensure optimal engine protection and performance.

Key Features:

• 98% filtration efficiency removes small particles from incoming air to prevent engine wear
• High-pleat construction provides robust particle holding capacity for extended service life
• High velocity cellulose cured media ensures minimal air restriction and even pleat spacing
• Polyurethane foam seal delivers superior elasticity and sealing performance
• Protects against water and heat intrusion into the air intake system
• Maintains optimal airflow for strong engine performance and fuel efficiency

Bosch Workshop Air Filters are engineered to prevent damaging dirt and abrasive particles from entering your engine while maintaining proper airflow for maximum performance. The precision-molded polyurethane seal prevents bypass of unfiltered air and maintains full filter surface area without compromise. All features combine to deliver the clean air supply your engine needs for reliable operation in all driving conditions.