Denso 143-3259 Engine Air Filter

Denso FTF Air Filter for BMW Applications

The Denso First Time Fit Air Filter is an engine air filter built to meet Denso quality standards for consistent filtration and dependable airflow. This Denso 143-3259 air filter is a direct replacement choice for select BMW models, including BMW Z4, BMW 335i, and BMW 535i applications.

Key Features

• Engine air filter for air and fuel delivery service
• Denso First Time Fit product line for OE-style replacement fitment
• Height: 37.0
• Polygon shape with Side A Length: 354.0 and Side B Length: 284.0
• Built for select BMW fitments from 2007 through 2016
• Part number 143-3259 for catalog and cross-reference lookup

Detailed Description

Denso 143-3259 is an engine air filter engineered for select BMW vehicles that need a precise replacement filter in the intake system. The polygon-shaped filter measures 37.0 in height with side lengths of 354.0 and 284.0, helping match the original filter form used in the listed BMW applications. Denso’s First Time Fit Air Filter line is positioned as an OE-style replacement range focused on quality control and consistent performance for everyday driving.

This part cross-references BMW 13 71 7 556 961 for the same application.

Vehicle Fitment

• Fits 2009-2016 BMW Z4, N/A
• Fits 2011-2013 BMW 335is, N/A
• Fits 2011 BMW 1 Series M, N/A
• Fits 2008-2010 BMW 135i, N/A
• Fits 2007-2010 BMW 335i, N/A
• Fits 2009-2010 BMW 335i xDrive, N/A
• Fits 2008-2010 BMW 535i, N/A
• Fits 2009-2010 BMW 535i xDrive, N/A
• Fits 2007-2008 BMW 335xi, N/A
• Fits 2008 BMW 535xi, N/A

What It Helps Address

• Restricted airflow caused by a dirty or clogged engine air filter
• Dust and debris entering the intake system
• Reduced filtration efficiency during routine maintenance intervals
• Fitment issues when replacing the original BMW air filter
• Air filter service needs on BMW Z4, 335i, and 535i models

Installation Notes and Tips

Verify the existing filter dimensions and shape before installation, especially on BMW Z4, BMW 335i, and BMW 535i applications. Compare the old filter to Denso 143-3259 to confirm the polygon profile and listed measurements match the vehicle’s airbox. Replace the filter during routine engine maintenance and inspect the airbox for dirt or debris before closing the housing.

Quality Assurance

Denso states that its First Time Fit Air Filters are built to meet its quality standards and are backed by quality assurance. As a global OEM leader in engine filtration components, Denso applies OE-focused manufacturing practices to this replacement air filter line.