Bosch P3915WS Cabin Air Filter

Bosch Cabin Filter P3915WS for Subaru

Bosch Cabin Filter P3915WS is an OEM-standard particulate cabin air filter built for Subaru applications that need dependable in-cabin air filtration. It uses layered filter media to capture dirt and environmental particles before they enter the passenger compartment, helping support cleaner air for drivers and passengers.

Key Features

• Particulate cabin air filter for HVAC filtration
• Multiple layers of protection to trap airborne dirt and environmental particles
• Spunbound polyester with synthetic meltblow fibers for filter media performance
• OEM standard part for direct replacement service
• Designed for Subaru WRX, WRX STI, Forester, Crosstrek, XV Crosstrek, and Impreza applications
• Bosch P3915WS cabin filter for routine HVAC maintenance

Product Details

Bosch Cabin Filter P3915WS is part of the Bosch Cabin Filter line and is engineered as a particulate filter rather than an odor-control or HEPA-style unit. The filter media combines spunbound polyester with synthetic meltblow fibers to help capture airborne contaminants entering the HVAC system. Bosch states that the layered construction captures a large share of dirt and environmental particles, supporting passenger comfort and cabin air quality in daily driving.

This Bosch P3915WS cabin air filter cross-references Subaru 72880FG000 for the same application. It is a direct-fit service part for Subaru WRX, Subaru WRX STI, Subaru Forester, Subaru Crosstrek, Subaru XV Crosstrek, and Subaru Impreza models listed below.

What It Helps Address

• Dust entering the cabin through the HVAC intake
• Road debris and airborne particles circulating through the ventilation system
• Reduced cabin air cleanliness during normal driving
• General HVAC filter restriction from a dirty or worn cabin filter
• Passenger discomfort caused by contaminated intake air

Installation Notes

Replace the cabin filter according to the vehicle maintenance schedule or sooner if airflow drops or the filter appears loaded with debris. Verify the vehicle year and model before installation. This filter is listed for the cabin filter position on the following Subaru applications: Fits 2013-2019 Subaru WRX, N/A; Fits 2013-2019 Subaru WRX STI, N/A; Fits 2009-2018 Subaru Forester, N/A; Fits 2016-2017 Subaru Crosstrek, N/A; Fits 2008-2016 Subaru Impreza, N/A; Fits 2013-2015 Subaru XV Crosstrek, N/A.

Quality Assurance

Bosch manufactures this cabin filter as an OEM-standard replacement part for the HVAC system. The particulate media construction and multi-layer design reflect Bosch’s focus on consistent filtration performance for Subaru cabin air service.