Denso 143-3800 Engine Air Filter

Denso FTF Air Filter for Honda

The Denso FTF Air Filter, part number 143-3800, is an engine air filter built for select Honda applications. It is engineered to meet Denso quality standards and support clean airflow for everyday driving and routine maintenance.

Key Features

• Engine air filter for select Honda Civic and Honda HR-V applications
• Denso First Time Fit Air Filter line for OE-style replacement fitment
• Built to Denso quality standards for filtration performance
• Direct replacement option for routine air filter service
• Part number 143-3800 for easy identification

Detailed Description

Denso 143-3800 is an engine air filter from the FTF Air Filter line, developed for select Honda Civic and Honda HR-V models. This filter is intended for drivers replacing a worn or restricted engine air filter and looking for a direct-fit service part that matches the application requirements of the vehicle. It cross-references FRAM CA12051 and Honda 17220-5BA-A00 / 172205BAA00 for the same application.

The First Time Fit line focuses on application-specific fitment and consistent filtration quality. For Honda Civic and Honda HR-V maintenance, this part supports normal engine air intake service and helps keep the intake system supplied with filtered air.

What It Helps Address

• Restricted airflow from a dirty engine air filter
• Routine maintenance for Honda Civic and Honda HR-V intake service
• Replacement of a filter that no longer meets service interval needs
• Dust and debris entering the engine air intake path

Installation Notes and Tips

• Verify the vehicle year and model before ordering: Fits 2021-2024 Honda Civic, N/A; Fits 2023-2024 Honda HR-V, N/A; Fits 2016-2020 Honda Civic, N/A.
• Inspect the air box and sealing surfaces before installing the new filter.
• Replace the filter according to the vehicle maintenance schedule or when restriction is present.
• Confirm the part number 143-3800 against the existing filter and application catalog.

Quality Assurance

Denso states that its First Time Fit Air Filters are built to its quality standards and backed by quality assurance for the product line. Denso is also a global OEM supplier of engine filtration components, which supports the application-focused design of this filter.