Bosch 5621WS Workshop Engine Air Filter

The Bosch 5621WS engine air filter (also called an engine air cleaner element) is part of the Bosch Workshop air filter line. It keeps dirt and other damaging particles out of the engine's intake air.

Key Features:

• High-velocity cellulose media: Cured media is designed to give minimal air resistance, so the engine gets enough clean air.
• 98% filtration efficiency: Micropores in the media capture small particles to help protect against engine wear.
• High pleat count: More pleats give the filter a large dirt-holding capacity, and even pleat spacing helps efficiency.
• Backfire protection: The filter helps stop engine backfires from escaping the air intake system.

Check your engine air filter at every oil change. Replace a dirty one with a quality Bosch Workshop filter to restore engine protection, performance and efficiency.