Denso 143-3734 Air Filter

Denso FTF Air Filter for OE-Style Engine Protection

The Denso First Time Fit engine air filter is built for drivers who want a direct replacement air filter with OE-level fit and filtration support. This square air filter measures 39.0 mm in height with side lengths of 266.0 mm and 260.0 mm, making it a precise service part for select Buick and Chevrolet applications.

Compatible with 2019 Buick Cascada, 2012-2015 Buick Verano, and 2011-2015 Chevrolet Cruze, this Denso 143-3734 air filter supports clean intake airflow for everyday driving and routine maintenance.

Key Features

• Denso First Time Fit air filter line for direct replacement service
• Square filter design with 39.0 mm height
• Side A length: 266.0 mm
• Side B length: 260.0 mm
• Engine air filter for select Buick and Chevrolet models
• Part number 143-3734 for catalog lookup and ordering

Product Details

Denso developed the FTF Air Filter line to meet its quality standards for engine filtration components. As an OEM-focused filtration supplier, Denso applies the same fitment-first approach used across its original equipment programs to this replacement filter. The result is a service part built around the dimensions and application requirements of select Buick Cascada, Buick Verano, and Chevrolet Cruze models. If you are searching for a 2011-2015 Chevrolet Cruze engine air filter or a 2012-2015 Buick Verano air filter, Denso 143-3734 is a direct-reference option to compare against OE numbers and aftermarket cross-references.

This part cross-references ACDelco A3144C and Wix 49739 for the same application.

Common Problems This Filter Can Address

• Restricted intake airflow from a dirty or clogged engine air filter
• Reduced filtration performance during routine maintenance intervals
• Dust and debris entering the intake system through a worn filter element
• Service replacement needs for a 2019 Buick Cascada, 2012-2015 Buick Verano, or 2011-2015 Chevrolet Cruze
• Fitment mismatch when replacing the original air filter with the wrong size or shape

Installation Notes and Tips

Verify the filter housing dimensions before installation and compare the old filter to Denso 143-3734 for shape and size confirmation. Replace the engine air filter during scheduled maintenance, and inspect the air box for dirt or debris before closing the housing. For best results, confirm vehicle year, make, and model against the listed fitment: Fits 2019 Buick Cascada, N/A; Fits 2012-2015 Buick Verano, N/A; Fits 2011-2015 Chevrolet Cruze, N/A.

Quality Assurance

Denso positions the First Time Fit line as a quality-controlled replacement filter range, with engineering and manufacturing standards aligned to its OEM filtration background. Part number 143-3734 is built to deliver consistent fit and performance for the listed applications.