Denso 143-3097 Air Filter

Denso FTF Air Filter for Mazda CX-9 and Mazda 6

Denso First Time Fit Air Filter 143-3097 is an engine air filter built to match the dimensions and fitment requirements of select Mazda applications. With a rectangular shape and a 305.0 mm by 169.0 mm footprint, it is sized for direct replacement service in the air intake system.

Compatible With 2007-2015 Mazda CX-9 and 2009-2013 Mazda 6, this Denso air filter supports clean airflow through the engine intake. The FTF Air Filter line focuses on OE-style fit and consistent filtration performance for routine maintenance on Mazda CX-9 and Mazda 6 models.

Key Features

• Engine air filter for air and fuel delivery service
• Rectangular filter shape with 305.0 mm side A length and 169.0 mm side B length
• 45.0 mm height for the specified airbox application
• Direct-fit replacement under Denso First Time Fit Air Filter line
• Cross-references FRAM CA10242 and Wix 46935 for the same application

Product Details

Denso 143-3097 is an OE-style engine air filter engineered for select Mazda intake systems. The First Time Fit line is built around Denso’s filtration experience as an OEM supplier, with attention to fit, sealing, and airflow consistency. For drivers searching for a Mazda CX-9 air filter or a Mazda 6 engine air filter, this part number provides a direct replacement option that matches the listed dimensions and vehicle coverage.

This part cross-references FRAM CA10242 and Wix 46935 for the same application.

What It Helps Address

• Restricted airflow caused by a dirty or clogged engine air filter
• Dust and debris entering the intake tract
• Uneven engine breathing during routine maintenance intervals
• Replacement needs for a worn Mazda CX-9 or Mazda 6 air filter
• Fitment issues from using the wrong filter size or shape

Installation Notes and Tips

Verify the airbox dimensions and compare the rectangular filter profile before installation. Replace the filter during scheduled maintenance, and inspect the air cleaner housing for dirt or debris before fitting the new element. Confirm vehicle application by year, make, and model: Fits 2007-2015 Mazda CX-9, N/A; Fits 2009-2013 Mazda 6, N/A.

Quality Assurance

Denso states that First Time Fit Air Filters are built to its quality standards and backed by quality assurance. As a global OEM leader in engine filtration components, Denso applies manufacturing experience to this replacement air filter line.