Denso 143-3712 Engine Air Filter

Denso FTF Air Filter for Ford Super Duty

The Denso FTF Air Filter 143-3712 is an engine air filter built for 2014-2016 Ford F-250 Super Duty and 2014-2016 Ford F-350 Super Duty secondary applications. It is engineered around Denso’s First Time Fit Air Filter line, which focuses on OE-style fit and consistent filtration performance for the specified vehicle applications.

Key Features

• Engine air filter for secondary filtration applications
• Fits 2014-2016 Ford F-250 Super Duty, N/A position
• Fits 2014-2016 Ford F-350 Super Duty, N/A position
• Dimensions: 81.0 mm height, 189.0 mm side A length, 160.0 mm side B length
• Unique shape designed to match the listed application
• Denso First Time Fit line for OE-style replacement fitment

Product Details

Denso 143-3712 is part of the FTF Air Filter line, a product range developed to deliver direct-fit replacement filtration for specific vehicle applications. For 2014-2016 Ford F-250 Super Duty and Ford F-350 Super Duty models, this engine air filter is specified as a secondary filter and is sized at 81.0 mm in height with 189.0 mm and 160.0 mm side lengths. The shape is listed as Other/Unique, which reflects the application-specific design used to match the factory airbox configuration.

This part cross-references Ford BC3Z 9601-D and Motorcraft FA 1909 for the same application. The Denso 143-3712 is also listed alongside Wix WA10139 as an interchange reference.

What This Filter Helps Address

• Restricted airflow caused by a dirty or clogged engine air filter
• Dust and debris entering the intake system
• Reduced filtration efficiency in secondary air filter applications
• Fitment issues from using the wrong size or shape filter
• Maintenance replacement needs on Ford Super Duty diesel applications

Installation Notes

Verify the air filter housing and application before installation. This filter is listed for secondary use on 2014-2016 Ford F-250 Super Duty and Ford F-350 Super Duty models, so confirm the existing filter dimensions and shape match 81.0 mm height, 189.0 mm side A length, and 160.0 mm side B length. Always inspect the airbox sealing surfaces and replace the filter according to the vehicle maintenance schedule.

Quality Assurance

Denso develops the First Time Fit Air Filter line to meet its internal quality standards and to provide consistent fit and performance for the listed applications. As an OEM-focused filtration supplier, Denso applies production and quality control practices aimed at delivering a direct replacement part for the specified Ford Super Duty vehicles.