Bosch 5171WS Workshop Engine Air Filter

The Bosch 5171WS Workshop Air Filter is engineered to deliver superior engine protection by ensuring only the cleanest air reaches your engine. Part of Bosch's professional Workshop Series, this premium replacement air filter combines advanced filtration technology with durable construction for reliable, long-lasting performance.

Advanced Filtration Technology:

• Up to 99.5% filtering efficiency removes harmful particles and contaminants
• High number of pleats with high-velocity cellulose cured media for maximum dust-holding capacity
• Non-oiled design protects sensitive air mass sensors from contamination
• High-capacity media captures even the smallest particles to prevent engine wear

Premium Construction:

• Imported polyurethane foam seal provides superior elasticity and sealing performance
• Prevents loss of filter surface area for consistent airflow
• Heat and water resistant seal ensures reliable operation in extreme conditions
• Panel-style design for direct OEM replacement fitment

Bosch Workshop Air Filters are specifically designed for professional installers, offering reliable performance that helps improve fuel economy while protecting critical engine components. This disposable air filter is sold individually and backed by Bosch's quality assurance.