Denso 143-3181 Air Filter

Denso FTF Air Filter for Acura TSX

The Denso FTF Air Filter 143-3181 is an engine air filter built to match the dimensions and filtration needs of the listed application. With a polygon shape, 54.0 mm height, 237.0 mm side A length, and 211.0 mm side B length, it is sized for a precise OE-style fit in the air intake housing.

Compatible with 2009-2014 Acura TSX, this filter supports clean airflow for everyday driving and routine maintenance. The Denso First Time Fit line is engineered around Denso’s quality standards for consistent fit and performance in the vehicle’s intake system.

Key Features

• Engine air filter for the air and fuel delivery system
• Part number 143-3181 for easy identification
• Polygon-shaped filter media frame
• 54.0 mm height with 237.0 mm and 211.0 mm side lengths
• Direct fit for 2009-2014 Acura TSX applications
• OE-style replacement for Acura TSX air filter service

Product Details

Denso 143-3181 is part of the FTF Air Filter line, a product family focused on first-time fitment and consistent manufacturing standards. For drivers searching for a 2009-2014 Acura TSX engine air filter, Acura TSX replacement air filter, or Denso 143-3181 air filter, this unit is built to match the listed dimensions and application requirements. This part cross-references FRAM CA10802 for the same application.

What It Helps Address

• Restricted airflow caused by a dirty or clogged engine air filter
• Routine air filter replacement for Acura TSX maintenance
• Dust and debris entering the intake tract
• Reduced filtration performance from an aged filter element
• Fitment issues from using the wrong filter size

Installation Notes

Verify the existing filter dimensions and housing shape before installation. Confirm the vehicle is a 2009-2014 Acura TSX and compare the old filter to part number 143-3181 for proper fitment. Install the filter in the air box according to the vehicle service procedure and ensure the housing seals evenly after replacement.

Quality Assurance

Denso develops engine filtration components as an OEM supplier and applies those standards to the First Time Fit Air Filter line. The 143-3181 is manufactured to Denso quality requirements for consistent fit and dependable filtration performance.