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Part #: E3903LB

Hengst E3903LB Cabin Air Filter

HEZ Cabin Air Filter
⚙️ 37 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦HEZ Cabin Air Filter
🚗Fitment: Mazda, 3, 3 Sport, 6, CX-30, and CX-5
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Hengst HEZ Cabin Air Filter E3903LB

The Hengst HEZ Cabin Air Filter E3903LB is designed to improve air quality inside your vehicle by filtering out contaminants using biological filter media. This cabin air filter is compatible with select Mazda models, providing reliable filtration for a cleaner cabin environment.

  • Biological filter media material for effective air purification
  • Compatible with Mazda 3, 3 Sport, 6, CX-5, and CX-30 models
  • Part number E3903LB for precise fitment
  • Part of the HEZ Cabin Air Filter product line focused on cabin air quality
  • Designed to reduce airborne particles and allergens inside the vehicle

HEZ Cabin Air Filter Product Line Details

The HEZ Cabin Air Filter line by Hengst emphasizes the use of advanced biological filter media to enhance the filtration of cabin air. This product line targets the removal of biological contaminants and airborne particles, contributing to a healthier in-cabin atmosphere. The E3903LB model continues this approach, ensuring compatibility with various Mazda vehicles while maintaining filtration performance.

Product Description and Features

The Hengst HEZ Cabin Air Filter E3903LB utilizes biological filter media material designed to capture and reduce airborne contaminants such as pollen, dust, and other allergens. This filter is engineered specifically for Mazda vehicles including the Mazda 3, 3 Sport, 6, CX-5, and CX-30, ensuring a proper fit and optimal performance. The biological media enhances the filter’s ability to maintain cleaner air inside the cabin, which can improve comfort and reduce exposure to irritants during driving.

Applications and Problem Solving

  • Reduces pollen and allergen buildup inside the vehicle cabin
  • Helps minimize dust and particulate matter entering the HVAC system
  • Improves air quality for occupants sensitive to airborne contaminants
  • Prevents unpleasant odors caused by biological pollutants
  • Supports HVAC system efficiency by maintaining cleaner airflow

Installation Notes and Tips

When replacing the Hengst HEZ Cabin Air Filter E3903LB, ensure the vehicle is compatible by verifying the model and year. The filter is designed for straightforward installation in the cabin air filter housing of Mazda 3, 3 Sport, 6, CX-5, and CX-30 models. Follow the vehicle manufacturer’s instructions for access and replacement to maintain proper filter orientation and sealing.

Quality Assurance

Hengst maintains strict quality control standards for the HEZ Cabin Air Filter line, including the E3903LB. While specific warranty details are not provided, Hengst products are manufactured to meet OEM specifications for fit and filtration performance, ensuring reliable operation within the specified Mazda models.

BrandHengst
Part NumberE3903LB
PositionHEZ Cabin Air Filter
Filter Media MaterialBiological

This part fits 37 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2025MazdaCX-52.5LL4N/AMaterial: Biofunctional; HEZ Cabin Air Filter
2024MazdaCX-52.5LL4N/AMaterial: Biofunctional; HEZ Cabin Air Filter
2023MazdaCX-52.5LL4N/AMaterial: Biofunctional; HEZ Cabin Air Filter
2022MazdaCX-52.5LL4N/AMaterial: Biofunctional; HEZ Cabin Air Filter
2021Mazda32.5LL4N/AMaterial: Biofunctional; With OE No. BDGF-61-J6X
2021Mazda62.5LL4N/AMaterial: Biofunctional; HEZ Cabin Air Filter
2021MazdaCX-302.5LL4N/AMaterial: Biofunctional; With OE No. BDGF-61-J6X
2021MazdaCX-52.5LL4N/AMaterial: Biofunctional; HEZ Cabin Air Filter
2020Mazda32.5LL4N/AMaterial: Biofunctional; With OE BDGF-61-J6X
2020Mazda62.5LL4N/AMaterial: Biofunctional; HEZ Cabin Air Filter
2020MazdaCX-302.5LL4N/AMaterial: Biofunctional; With OE BDGF-61-J6X
2020MazdaCX-52.5LL4N/AMaterial: Biofunctional; HEZ Cabin Air Filter
2019Mazda32.5LL4N/ACompatible with biofunctional material cabin air filters.
2019Mazda32.0LL4N/ACompatible with biofunctional material cabin air filters.
2019Mazda62.5LL4N/ACompatible with biofunctional material cabin air filters.
2019MazdaCX-52.5LL4N/ACompatible with biofunctional material cabin air filters.
2018Mazda32.5LL4N/ACompatible with biofunctional material cabin air filters.
2018Mazda32.0LL4N/ACompatible with biofunctional material cabin air filters.
2018Mazda62.5LL4N/ACompatible with biofunctional material cabin air filters.
2018MazdaCX-52.5LL4N/ACompatible with biofunctional material cabin air filters.
2017Mazda32.5LL4N/ACompatible with biofunctional material cabin air filters.
2017Mazda32.0LL4N/ACompatible with biofunctional material cabin air filters.
2017MazdaCX-52.5LL4N/ACompatible with biofunctional material cabin air filters.
2015Mazda32.5LL4N/ACompatible with biofunctional material cabin air filters.
2015Mazda32.0LL4N/ACompatible with biofunctional material cabin air filters.
2015Mazda3 Sport2.0LL4N/ACompatible with biofunctional material cabin air filters.
2015Mazda62.5LL4N/ACompatible with biofunctional material cabin air filters.
2015MazdaCX-52.5LL4N/ACompatible with biofunctional material cabin air filters.
2015MazdaCX-52.0LL4N/ACompatible with biofunctional material cabin air filters.
2014Mazda32.5LL4N/ACompatible with biofunctional material cabin air filters.
2014Mazda32.0LL4N/ACompatible with biofunctional material cabin air filters.
2014Mazda3 Sport2.5LL4N/ACompatible with biofunctional material cabin air filters.
2014Mazda3 Sport2.0LL4N/ACompatible with biofunctional material cabin air filters.
2014Mazda62.5LL4N/ACompatible with biofunctional material cabin air filters.
2014MazdaCX-52.5LL4N/ACompatible with biofunctional material cabin air filters.
2014MazdaCX-52.0LL4N/ACompatible with biofunctional material cabin air filters.
2013MazdaCX-52.0LL4N/ACompatible with biofunctional material cabin air filters.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

BDGF-61-J6XKD45-61-J6XMP111KD45

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.