Bosch
Cabin Filter, HEPA

Bosch 6103C Cabin Air Filter

Brand Bosch 6103C
Reusable No
Activated Carbon Pre-Filter For Odor Removal No
Automotive Item Type Oem standard part
Automotive Item Weight (lbs) 0.17637 lb
Automotive Material Foam
Cabin Filter Type High efficiency particulate
Filter Material (Cabin Air Filter) Spunbound polyester along with synthetic meltblow fibers
Filter Quantity 1
HEPA Filter Yes
Product line Cabin Filter, HEPA
Fits Subaru · 4 vehicles

HEPA cabin filter. Captures 99.97% of particles at 0.3 microns for cleaner air.

OEM standard part. Built to match original equipment specifications.

Spunbond polyester and synthetic meltblown fibers help trap dust, pollen, and fumes.

$32.64Free shipping
In stock · usually ships same day before 1pm CST
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Step 2 — Quantity
Order total $32.64
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Free returns within 60 days if it doesn't fit when fitment is verified.

Bosch HEPA Cabin Air Filter for Subaru

Bosch 6103C is a HEPA premium cabin air filter built for the HVAC system to clean incoming air before it reaches the passenger compartment. It is engineered for 2019 Subaru Ascent and 2019-2021 Subaru Forester applications, helping capture fine dust, pollen, fumes, and other airborne contaminants.

The Bosch Cabin Filter, HEPA line is designed and tested to meet HEPA standards based on ISO 29463-3:2011, with filtration efficiency rated at 99.97% at 0.3 microns. For Subaru Forester and Subaru Ascent owners looking for a direct cabin air filter replacement, Bosch 6103C supports cleaner air inside the vehicle.

Key Features

  • HEPA premium cabin air filter for HVAC intake air
  • Filtration efficiency rated at 99.97% at 0.3 microns
  • Spunbound polyester with synthetic meltblown fibers
  • OEM standard part construction
  • Foam-based filter material
  • Non-reusable design
  • Bosch 6103C cabin air filter for Subaru applications

Detailed Description

Bosch 6103C is a high efficiency particulate cabin air filter made to help keep the air entering the cabin cleaner through the heating, ventilation, and air conditioning system. The HEPA-rated media is built to trap very small particles, making it a practical choice for drivers who want stronger filtration performance from their Subaru Forester or Subaru Ascent cabin filter replacement. Bosch 6103C combines spunbound polyester and synthetic meltblown fibers to support fine particulate capture in everyday driving conditions.

Bosch’s Cabin Filter, HEPA product line focuses on filtration performance for passenger comfort and air quality. This part number, 6103C, is a direct-fit style cabin air filter for 2019 Subaru Ascent and 2019-2021 Subaru Forester models listed in the fitment data.

What It Helps Address

  • Dust entering the cabin through the HVAC system
  • Pollen exposure during seasonal driving
  • Fumes and airborne pollutants drawn into the interior
  • Reduced cabin air cleanliness from a loaded filter
  • Passenger discomfort related to poor air filtration

Installation Notes and Tips

Replace the cabin air filter according to the vehicle maintenance schedule or sooner if airflow drops or the filter appears dirty. Confirm the HVAC filter location in the Subaru Forester or Subaru Ascent before service, and install the filter in the correct airflow direction if the housing indicates one. Bosch 6103C is an OEM standard part and is intended for direct cabin filter replacement in the listed applications.

Quality Assurance

Bosch designs and tests this HEPA cabin filter to meet High Efficiency Particulate Air standards based on ISO 29463-3:2011. The part number 6103C is built for filtration performance in the cabin air system and is listed for 2019 Subaru Ascent and 2019-2021 Subaru Forester applications.

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelNotes
2021SubaruForesterCabin Filter, HEPA
2020SubaruForesterCabin Filter, HEPA
2019SubaruAscentCabin Filter, HEPA
2019SubaruForesterCabin Filter, HEPA