Breathe cleaner air inside your Porsche with this Corteco Cabin Air Filter—a direct replacement for OEM part number 99657221902. Manufactured by Corteco, an OE supplier for German automakers, this cabin filter is engineered to provide high-efficiency filtration against dust, pollen, and airborne contaminants, ensuring a healthier driving experience and maintaining proper HVAC performance.
Regular replacement of your cabin filter improves airflow, reduces HVAC strain, and protects occupants from allergens and odors. This filter fits a wide range of Porsche 911 (996) and Boxster (986) models and installs easily in the factory location.
Key Features:
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Corteco Part Number: 21651920
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OEM Cross Reference: 99657221902
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Multi-layer media filters out fine dust, pollen, and harmful particulates
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OE-quality fit and performance
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Restores clean airflow through the HVAC system
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Recommended replacement interval: every 15,000 miles or annually
Fitment Includes:
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Porsche 911 (996) – Carrera, Carrera 4, Turbo, GT2, GT3 (1999–2005)
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Porsche Boxster (986) – Base, S (1997–2004)
(Always confirm fitment with your vehicle's VIN or model/year.)
Cross Reference:
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Porsche OEM: 996.572.219.02
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Corteco: 21651920
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Mann Filter Equivalent: CUK 2736
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Hengst Equivalent: E998LC
