Denso 143-3773 Engine Air Filter

Denso FTF Air Filter 143-3773 Overview

The Denso 143-3773 engine air filter is part of the FTF Air Filter line, built to meet Denso quality standards for dependable engine filtration. With a rectangular shape and dimensions of 347.0 mm x 136.0 mm x 57.0 mm, this filter is sized for specific Volkswagen and Audi applications that require a precise OE-style fit.

Denso’s First Time Fit Air Filter line focuses on direct replacement fitment and consistent filtration performance. For drivers searching for a Volkswagen Jetta air filter, Volkswagen Passat air filter, or Audi A3 engine air filter, the 143-3773 provides a straightforward replacement option backed by Denso’s OEM filtration experience.

Key Features

• Engine air filter for air and fuel delivery service
• Rectangular filter shape for application-specific fitment
• Dimensions: 347.0 mm length x 136.0 mm width x 57.0 mm height
• Part number 143-3773 for easy identification
• FTF Air Filter line engineered for direct replacement use
• Cross-references FRAM CA9711 and Wix 49020 for the same application

Detailed Description

The Denso 143-3773 is an engine air filter designed for vehicles that require a rectangular OE-style filter element. Its listed dimensions help confirm fitment before ordering, especially for Volkswagen Jetta, Volkswagen Passat, Volkswagen Beetle, Volkswagen Golf, and Audi A3 applications. If you are replacing a worn Volkswagen Golf air filter or sourcing an Audi A3 engine air filter, this part number provides a clear match reference.

As part of Denso’s FTF Air Filter product line, this filter reflects the brand’s focus on first-time fit replacement parts. Denso applies its OEM filtration background to deliver a filter that aligns with factory-style service expectations and consistent engine air intake protection.

Vehicle Fitment

• Fits 2011-2015 Volkswagen Jetta, N/A
• Fits 2012-2015 Volkswagen Passat, N/A
• Fits 2013-2014 Volkswagen Beetle, N/A
• Fits 2010-2014 Volkswagen Golf, N/A
• Fits 2010-2013 Audi A3, N/A
• Fits 2005 Volkswagen Jetta, N/A, Cold Spec; FTF Air Filter

What This Filter Helps Address

• Restricted airflow from a dirty or clogged engine air filter
• Routine maintenance replacement for Volkswagen and Audi intake service
• Loss of filtration efficiency caused by dust and debris buildup
• Incorrect fitment when replacing an OE-style rectangular air filter
• Service needs for vehicles listed under the Denso 143-3773 application range

Installation Notes and Quality Assurance

Verify the filter dimensions and vehicle application before installation, especially on 2011-2015 Volkswagen Jetta, 2012-2015 Volkswagen Passat, 2013-2014 Volkswagen Beetle, 2010-2014 Volkswagen Golf, and 2010-2013 Audi A3 models. Confirm the airbox style and compare the existing filter to the listed rectangular dimensions for proper replacement. The 2005 Volkswagen Jetta listing includes a cold-spec note and should be matched carefully to the vehicle’s service requirements.

Denso positions the FTF Air Filter line as a quality-controlled replacement solution, drawing on its global OEM experience in engine filtration components. The 143-3773 is built to meet Denso’s stated quality standards for fit and performance.