Denso 143-3811 Engine Air Filter

Denso FTF Air Filter for Ram HD Trucks

The Denso First Time Fit Air Filter is built for Ram heavy-duty truck applications that need dependable engine air filtration and consistent fitment. This Denso air filter, part number 143-3811, is engineered to meet Denso quality standards for everyday driving and demanding work use.

Key Features

• Engine air filter for select Ram 2500 and Ram 3500 applications
• Denso First Time Fit product line for OE-style fit and function
• Designed to support clean airflow into the engine intake system
• Part number 143-3811 for easy ordering and cross-reference lookup
• Cross-references FRAM CA10261 and Wix 46930 for the same application

Product Details

Denso 143-3811 is an engine air filter in the FTF Air Filter line, developed with Denso’s OEM filtration background in mind. It is a direct-fit service part for Ram 2500 and Ram 3500 trucks across multiple model years, including 2008-2010 Dodge Ram 2500 and Ram 3500, plus 2011-2020 Ram 2500 and Ram 3500, and 2021-2024 Ram 2500 and Ram 3500 coverage. If you are searching for a Ram 2500 engine air filter or Ram 3500 engine air filter, this part number is a relevant match for the listed applications.

What It Helps Address

• Restricted airflow from a dirty or clogged engine air filter
• Routine maintenance needs on Ram 2500 and Ram 3500 trucks
• Dust and debris entering the intake system through a worn filter
• Fitment issues when replacing the original air filter with the correct OE-style part

Installation Notes

Verify the vehicle year, make, and model before installation. Confirm the air filter housing matches the listed application for your Ram 2500 or Ram 3500. Replace the filter during scheduled maintenance or sooner if inspection shows heavy contamination.

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 that experience to this air filter line.

• Fits 2008-2010 Dodge Ram 2500, N/A
• Fits 2008-2010 Dodge Ram 3500, N/A
• Fits 2011-2020 Ram 2500, N/A
• Fits 2011-2020 Ram 3500, N/A
• Fits 2021 Ram 2500, N/A
• Fits 2021 Ram 3500, N/A
• Fits 2023-2024 Ram 2500, N/A
• Fits 2023-2024 Ram 3500, N/A