Bosch PC974A Workshop Cabin Air Filter

The Bosch PC974A is a Workshop Cabin Air Filter engineered for the professional installer market. Designed to replace the cabin air filter in select vehicles, it helps maintain clean airflow through the heating, ventilation, and air conditioning (HVAC) system by capturing airborne contaminants before they enter the passenger compartment.

Bosch Workshop Cabin Air Filters deliver a 99% filtration efficiency at 3 microns or greater, effectively trapping dust, dirt, pollen, mold spores, and other environmental contaminants that would otherwise circulate through the vehicle's interior vents. The filter media is engineered to maintain consistent airflow while maximizing particle retention throughout its service life.

Key Features:

• 99% filtration efficiency at 3 microns or greater for improved cabin air quality
• Captures dust, dirt, pollen, mold spores, and other airborne contaminants
• Engineered to OE specifications for proper fit and sealing
• Designed for the professional installer market with broad vehicle coverage
• Helps protect HVAC blower motors and evaporator cores from debris buildup
• Recommended replacement interval: every 12,000 miles or per vehicle owner's manual

The Bosch PC974A is a direct-fit replacement that installs without modification, making it an efficient choice for shop technicians. Regular cabin air filter replacement helps preserve HVAC system performance, reduces strain on the blower motor, and ensures a cleaner, healthier environment for vehicle occupants.