CA11259 Engine Air Filter & KD45-61-J6X Cabin Air Filter Kit for Mazda 3/3 Sport 2014-2018, Mazda 6 2014-2021, CX-5 2013-2025

CA11259 Engine Air Filter & KD45-61-J6X Cabin Air Filter Kit

Key Features

• Two-filter replacement kit: one engine air filter and one cabin air filter.
• Engine air filter dimensions: 10.64 × 7.09 × 1.71 inches.
• Cabin air filter dimensions: 9.17 × 8.23 × 1.22 inches.
• The engine filter helps trap dust, dirt, and airborne particles before they enter the engine.
• The cabin filter helps reduce dust, pollen, and other particles entering through the HVAC system.
  

Replaces / Cross-Reference Part Numbers

• Engine Air Filter: CA11259, 49247, PA10025, AF5211, A26280, PA-611, 33-2486
• Cabin Air Filter: KD45-61-J6X, KD45-61-J6X-9U, KR11-61-J6X, CF11811, 24103, 4103, VF2056, CU24009, AFC1588, C38175
  

Compatibility & Fitment

This kit fits select Mazda vehicles with compatible 2.0L or 2.5L naturally aspirated engines:

• Mazda 3 and Mazda 3 Sport, 2014–2018.
• Mazda 6, 2014–2021.
• Mazda CX-5, 2013–2025.

Verify the vehicle year, model, engine, and original filter numbers before ordering. The listed applications are not exhaustive, and fitment can vary within the same model year.

When to Replace

Replace the filters when the recommended maintenance interval is reached or when inspection shows excessive dirt, clogging, or damage. A restricted engine filter can reduce airflow to the engine, while a clogged cabin filter can reduce HVAC airflow and affect interior air quality. A general replacement interval is every 12,000–15,000 miles or every 12 months, subject to the vehicle manufacturer's maintenance schedule and driving conditions.

Installation Tips

• Confirm the replacement numbers and filter dimensions against the removed filters before installation.
• Switch off the vehicle and open the appropriate air-filter or HVAC filter housing according to the vehicle service instructions.
• Clean loose debris from the housing without allowing dirt to enter the intake or HVAC duct.
• Install each filter in the airflow direction marked on the filter or housing, then ensure the cover is fully secured.
• Both filters are routine maintenance items and can normally be replaced with basic hand tools; allow approximately 15–30 minutes for the pair, depending on vehicle access.