Denso 143-3652 Air Filter

Denso FTF Air Filter for Lexus Applications

The Denso First Time Fit Air Filter, part number 143-3652, is an engine air filter built for select Lexus vehicles. It is shaped as a pentagon and measures 61.0 mm in height with side lengths of 235.0 mm and 229.0 mm, supporting a precise OE-style fit in the air intake system.

Designed for Lexus IS300, IS350, RC300, RC350, GS350, GS450h, GS200t, IS200t, RC200t, IS250, GS300, and GS460 applications, this Denso 143-3652 air filter follows the dimensions and fitment requirements used in the listed vehicles.

Key Features

• Engine air filter for select Lexus models
• First Time Fit Air Filter line from Denso
• Pentagon-shaped filter element
• Height: 61.0 mm
• Side A length: 235.0 mm
• Side B length: 229.0 mm
• OE-style fitment for listed Lexus applications

Product Details

Denso’s FTF Air Filter line is engineered around original-equipment fit and filtration requirements. As a global OEM supplier of engine filtration components, Denso applies production standards that support consistent fitment and dependable airflow management in the intake system. This part number 143-3652 is listed for multiple Lexus sedan and coupe applications, including 2019-2024 Lexus IS300, 2019-2024 Lexus IS350, 2019-2024 Lexus RC300, and 2019-2024 Lexus RC350, along with earlier GS, IS, and RC models.

This part cross-references FRAM CA10996 and Wix 49240 for the same application.

What It Helps Address

• Restricted engine airflow from a loaded or dirty air filter
• Dust and debris entering the intake tract
• Uneven filtration performance from a worn filter element
• Fitment issues caused by incorrect filter dimensions
• Maintenance needs on Lexus IS, GS, and RC engine air intake systems

Installation Notes and Tips

• Verify the vehicle year, model, and engine air box shape before installation.
• Compare the existing filter dimensions to the listed 61.0 mm height, 235.0 mm side A, and 229.0 mm side B measurements.
• Confirm the pentagon shape matches the factory air filter housing.
• Replace the filter according to the vehicle maintenance schedule or sooner if the element is visibly dirty.

Quality Assurance

Denso positions the First Time Fit Air Filter line around OE-level quality standards and fit verification. The manufacturer states that quality assurance is provided for this product line, giving buyers a Denso-backed replacement for select Lexus engine air filter applications.