Denso 143-3246 Engine Air Filter

Denso FTF Air Filter for BMW Applications

The Denso First Time Fit Air Filter, part number 143-3246, is an engine air filter built to match the dimensions and filtration needs of select BMW applications. With a rectangular shape and a 285.0 mm by 148.0 mm footprint, it is sized for direct replacement use in the listed BMW X5 and BMW 750iL fitments.

Denso’s FTF Air Filter line focuses on OE-style fit and consistent filtration performance for drivers maintaining BMW intake systems. This 143-3246 filter is engineered to meet Denso’s quality standards and is backed by the brand’s quality assurance process.

Key Features

• Engine air filter for air and fuel delivery service
• Rectangular filter shape for the specified BMW airbox applications
• Height: 58.0 mm
• Side A Length: 285.0 mm
• Side B Length: 148.0 mm
• Part number 143-3246 for catalog and fitment lookup
• First Time Fit Air Filter line from Denso

Fitment Details

• Fits 2001-2006 BMW X5, N/A
• Fits 1995-2001 BMW 750iL, N/A

What This Filter Helps Address

• Restricted airflow from a loaded or dirty engine air filter
• Dust and debris entering the intake system
• Reduced intake efficiency caused by a worn filter element
• Service replacement needs for BMW X5 and BMW 750iL air filtration

Installation Notes and Tips

Verify the air filter housing dimensions against the listed measurements before installation. Confirm the vehicle application by year and model, then inspect the airbox sealing surfaces for dirt or damage before placing the new filter. For BMW X5 and BMW 750iL service, follow the vehicle’s air filter service procedure and ensure the filter seats evenly in the housing.

This part cross-references BMW 13 72 1 702 907 and FRAM CA8220 for the same application.

Quality Assurance

Denso develops First Time Fit Air Filters with input from multiple manufacturers and applies its OEM filtration experience to this product line. The 143-3246 is produced to Denso’s stated quality standards and quality assurance process for consistent replacement use.