KAX Engine Air Filter CA9898 for Mazda 3 & 5 — Direct-Fit Rectangular, High-Flow Oiled Cotton

The KAX CA9898 is a premium replacement engine air filter engineered to deliver higher airflow, extended service life, and improved particle protection for compatible Mazda models.

This KAX CA9898 filter is designed as a direct-fit aftermarket replacement for a range of Mazda vehicles, offering a durable filter media and precise dimensions to match factory housings. Built with high-performance materials and manufacturing methods, it aims to provide consistent airflow while trapping fine dust and debris—helping maintain engine responsiveness between scheduled service intervals.

Which Mazda models does the CA9898 fit?

The CA9898 is matched to multiple Mazda model years and engine sizes where the original equipment part corresponds to these dimensions. Fitment covers Mazda 3 (2004–2011, and 2012–2013 for 2.5L/2.3T/2.0L engines) and Mazda 5 (2006–2010, and 2012–2015), ensuring a direct replacement without modification.

• Mazda 3: 2004–2011 and 2012–2013 (2.5L/2.3T/2.0L)
• Mazda 5: 2006–2010 and 2012–2015
• Direct-fit rectangular design for compatible airboxes
• One-piece box packaging, quantity: 1

How does this filter extend service intervals compared to standard filters?

KAX uses a high-performance oiled cotton gauze as the primary filtering media and advanced manufacturing techniques to increase durability. The result is an effective life roughly twice that of common paper filters under similar driving conditions, reducing the frequency of replacements.

• Estimated life up to 20,000 miles under typical conditions
• Durable media resists collapse and maintains airflow over time
• Not washable or reusable—replace at recommended intervals

What level of filtration and protection does CA9898 offer?

The CA9898 combines embossed paper support and performance media to capture a high percentage of inhaled particulates while preserving engine airflow. Laboratory-grade construction targets a high filtration effectiveness to reduce contaminants reaching critical engine components.

• Reported filtration efficiency around 99.9% for relevant particle ranges
• Special embossed paper backing for crease stability and dust capacity
• 3X protection design focus: durability, capacity, and stability

What are the physical specs and installation notes?

The CA9898 is a rectangular, single-piece replacement sized to fit the listed Mazda airboxes. It ships in a box and installs like the original part—no tools beyond basic airbox access are typically required. Note that this unit is neither washable nor reusable, so plan on replacing it per mileage recommendations.

• Dimensions: 10.9 inch length × 7.4 inch width × 2 inch height
• Shape: rectangular; Packaging: single boxed unit
• Installation: direct-fit replacement, follow vehicle service manual for airbox access

Who is this for? The KAX CA9898 is aimed at Mazda owners who want an aftermarket air filter that balances increased longevity and strong filtration without altering fitment or needing custom work. It's a good choice for drivers who prioritize consistent engine airflow, longer replacement intervals than standard paper filters, and OEM-style installation simplicity. If you need a washable or reusable design, choose a different filter family; if you want a direct-fit, long-life replacement with high particulate capture for compatible Mazda 3 and Mazda 5 model years, the CA9898 is built for that purpose.