Protec 390 Engine Air Filter

Protec 390 Engine Air Filter Overview

The Protec 390 engine air filter is built for everyday driving conditions and routine service intervals. It uses cellulose filter media in an air filter panel style to help maintain clean intake airflow for Mazda 6 and Mazda MPV applications.

With a 210 CFM rating and laboratory testing referenced to ISO 5011 standards, this filter is engineered to deliver measured engine air filtration performance. The Protec 390 is a direct-fit replacement for select Mazda models and is also cross-referenced to common aftermarket part numbers for the same application.

Key Features

• Engine air filter panel for intake air filtration
• Cellulose media construction
• 210 CFM rating
• Closed inner diameter top design
• Measures 12.582 in. long, 6.990 in. wide, and 1.844 in. high
• Designed to match OES media area
• Laboratory-tested to ISO 5011 with 97.5% minimum efficiency based on PRO-TEC 362

Detailed Description

Protec Part Number 390 is an engine air filter for 2003-2008 Mazda 6 and 2000-2006 Mazda MPV applications. It is designed around traditional service intervals and uses cellulose media to support consistent airflow while filtering incoming engine air. For buyers searching for a Mazda 6 air filter or Mazda MPV engine air filter, Protec 390 provides a direct replacement option with OE-style media area sizing.

This part cross-references Wix 42825 and FRAM CA8922 for the same application. The Protec 390 part number is also commonly searched as Pro-Tec 390.

What It Helps Address

• Restricted intake airflow from a dirty or loaded air filter
• Dust and debris entering the engine intake system
• Reduced filtration performance during routine maintenance intervals
• Service replacement needs for Mazda 6 and Mazda MPV air filter applications

Installation Notes and Tips

Verify the filter dimensions and housing shape before installation. Replace the air filter at normal service intervals or sooner if driving conditions create heavier dust exposure. Confirm fitment for your specific Mazda 6 or Mazda MPV model year before ordering, since this part is application-specific.

Quality Assurance

Protec references ISO 5011 laboratory testing and a minimum 97.5% efficiency result based on PRO-TEC 362 testing. The filter is designed to provide engine protection for everyday driving conditions throughout a traditional air filter change interval.