Denso 143-3820 Engine Air Filter

Denso FTF Air Filter for Ram Trucks

The Denso FTF Air Filter, part number 143-3820, is an engine air filter built for select Ram truck applications. It is engineered to meet Denso quality standards for consistent filtration and dependable engine airflow.

Compatible with 2014-2018 Ram 1500, 2014-2018 Ram 2500, 2014-2018 Ram 3500, and 2019 Ram 1500 Classic, this filter supports routine maintenance on gas and diesel truck platforms that require a direct-fit air filter replacement.

Key Features

• Engine air filter for select Ram 1500, Ram 2500, Ram 3500, and Ram 1500 Classic applications
• Denso First Time Fit Air Filter line for OE-style fit and function
• Built to Denso quality standards for filtration performance
• Direct replacement reference: 143-3820
• Cross-references FRAM CA11960 and Wix 42725 for the same application

Product Details

Denso’s First Time Fit Air Filter line is positioned for straightforward replacement service on vehicles that need a properly matched engine air filter. For Ram truck owners, 143-3820 provides a service part option for maintaining intake cleanliness and supporting normal engine operation. It is a practical choice for scheduled air filter replacement on Ram 1500, Ram 2500, Ram 3500, and Ram 1500 Classic models within the listed years.

What It Helps Address

• Restricted airflow from a dirty or clogged engine air filter
• Dust and debris entering the intake system
• Reduced engine responsiveness caused by overdue filter service
• Maintenance needs on Ram 1500, Ram 2500, Ram 3500, and Ram 1500 Classic trucks

Installation Notes

Verify the vehicle year, model, and engine air box configuration before ordering. Replace the filter during routine service intervals and inspect the air box sealing surfaces for dirt or damage before installing the new filter. Confirm fitment against the listed Ram applications and part number 143-3820.

Quality Assurance

Denso develops First Time Fit Air Filters to meet its internal quality standards, drawing on its experience as an OEM supplier of engine filtration components. That focus supports consistent fit and performance for the specified Ram truck applications.