Hengst E3903LI Cabin Air Filter

Hengst E3903LI Cabin Air Filter for Mazda

The Hengst E3903LI is a particulate cabin air filter built for select Mazda HVAC systems. It helps maintain cleaner air entering the passenger compartment by filtering airborne dust and other particulate matter before it reaches the cabin.

• Particulate filter media for HVAC cabin air filtration
• Compatible with select Mazda 3, Mazda 6, Mazda CX-5, Mazda CX-30, and Mazda 3 Sport applications
• OE reference fitment for vehicles using Mazda OE No. BDGF-61-J6X
• Cross-references AMS Automotive 4103 for the same application
• Part number: E3903LI

Fitment Details

Compatible With 2021 Mazda 3, N/A; Material: Particulate; With OE No. BDGF-61-J6X. Compatible With 2021 Mazda CX-30, N/A; Material: Particulate; With OE No. BDGF-61-J6X. Compatible With 2020 Mazda 3, N/A; Material: Particulate; With OE BDGF-61-J6X. Compatible With 2020 Mazda CX-30, N/A; Material: Particulate; With OE BDGF-61-J6X. Compatible With 2017-2019 Mazda 3, N/A; Material: Particulate. Compatible With 2014-2015 Mazda 3, N/A; Material: Particulate. Compatible With 2018-2019 Mazda 6, N/A; Material: Particulate. Compatible With 2014-2015 Mazda 6, N/A; Material: Particulate. Compatible With 2017-2019 Mazda CX-5, N/A; Material: Particulate. Compatible With 2013-2015 Mazda CX-5, N/A; Material: Particulate. Compatible With 2014-2015 Mazda 3 Sport, N/A; Material: Particulate.

What It Helps Address

• Dust and fine airborne particles entering the HVAC system
• Reduced cabin air cleanliness from a loaded or restricted filter
• Weak airflow caused by a clogged cabin filter
• Unwanted debris buildup in the HVAC intake path
• Routine cabin air filter replacement on Mazda 3, Mazda 6, Mazda CX-5, and Mazda CX-30 models

Installation Notes and Tips

Verify the OE number and vehicle application before installation, especially on 2020-2021 Mazda 3 and Mazda CX-30 models using OE No. BDGF-61-J6X. Match the filter to the HVAC filter housing and airflow direction if marked on the part or vehicle housing. Replace the cabin air filter at regular service intervals to help maintain airflow and cabin air quality.

Quality Assurance

Hengst is an established filtration brand, and this E3903LI cabin air filter is built as a particulate-media replacement for the listed Mazda applications. It cross-references AMS Automotive 4103 and OE reference BDGF-61-J6X for the same fitment.