Denso 143-3199 Air Filter

Denso FTF Air Filter for Subaru Applications

The Denso FTF Air Filter, part number 143-3199, is an engine air filter built for Subaru vehicles that need a precise OE-style replacement. With a square shape and measured dimensions of 35.0 height, 218.0 side A length, and 216.0 side B length, it is sized for the listed Subaru fitments and supports clean airflow into the engine.

Denso’s First Time Fit Air Filter line is engineered around Denso’s OEM filtration experience, with a focus on consistent fit and quality control. If you are searching for a Subaru Forester air filter, Subaru Impreza air filter, or Subaru Outback air filter, 143-3199 is a direct replacement option for the applications shown below.

Key Features

• Engine air filter for Subaru air intake service
• Square filter shape with 35.0 height, 218.0 side A length, and 216.0 side B length
• Designed for OE-style fitment in listed Subaru models
• Part number 143-3199 for easy catalog matching
• Cross-references FRAM CA9997 and Purolator A35592 for the same application

Detailed Description

Denso 143-3199 is part of the First Time Fit Air Filter line, a product family focused on accurate replacement fit and filtration consistency. This engine air filter is listed for 2005-2015 Subaru Legacy, 2005-2015 Subaru Outback, 2008-2015 Subaru Impreza, 2009-2015 Subaru Forester, 2008-2014 Subaru Tribeca, 2006-2007 Subaru B9 Tribeca, 2013-2015 Subaru XV Crosstrek, 2015 Subaru WRX, and 2015 Subaru WRX STI. For buyers comparing Subaru OEM air filter replacements, 143-3199 provides a catalog-matched option for the specified vehicles.

What This Air Filter Helps Address

• Restricted airflow caused by a dirty or clogged engine air filter
• Dust and debris entering the intake system
• Reduced engine breathing from a worn filter element
• Maintenance replacement for Subaru Forester, Impreza, Legacy, and Outback service intervals
• Fitment uncertainty when replacing the factory-style air filter

Installation Notes and Tips

Verify the filter dimensions and vehicle application before installation. This part is listed for the engine air filter position only and should be matched to the air box used on the specified Subaru models. Compare the old filter’s shape and measurements to 143-3199 before closing the housing.

Quality Assurance

Denso states that its First Time Fit Air Filters are built to meet the company’s quality standards, drawing on its experience as a global OEM supplier of engine filtration components. That background supports consistent replacement quality for Subaru air filter service.