ATP Parts RA-4 Cabin Air Filter

ATP RA-4 Cabin Air Filter for Lexus GS300 and GS400

ATP Parts Premium Line RA-4 is a carbon activated cabin air filter for 1998-2000 Lexus GS300 and 1998-2000 Lexus GS400 applications. It is built to help reduce airborne particles entering the passenger compartment while also addressing common outside odors from traffic and diesel exhaust.

Premium Line Carbon Filtration

The ATP Parts Premium Line focuses on cabin air filtration with a static-charged media layer that captures fine contaminants before they reach the HVAC vents. Activated carbon adds odor control, making this RA-4 filter a practical choice for Lexus GS300 and Lexus GS400 owners who want cleaner air inside the vehicle.

• Carbon activated cabin air filter for HVAC intake filtration
• Static electrical charge helps trap airborne particles
• Activated carbon helps absorb outside odors
• Direct application for 1998-2000 Lexus GS300
• Direct application for 1998-2000 Lexus GS400

Fitment Details

Compatible with 1998-2000 Lexus GS300, N/A. Compatible with 1998-2000 Lexus GS400, N/A. This part cross-references Pronto PC5426 for the same application.

Common Problems This Filter Helps Address

• Dust and road debris entering the cabin through the HVAC system
• Odors from diesel fumes and outside traffic
• Reduced air freshness from a loaded cabin filter
• Unwanted particles circulating through the passenger compartment

Installation Notes

Replace the cabin air filter at the vehicle’s HVAC filter service interval or sooner if airflow drops or odors increase. Verify the filter orientation and housing access before installation on 1998-2000 Lexus GS300 and Lexus GS400 models. Match the part number RA-4 to the vehicle application before ordering.

Quality Assurance

ATP Parts Premium Line is positioned as a cabin filtration line focused on particle capture and odor reduction through activated carbon media. The RA-4 is listed for confirmed Lexus GS300 and Lexus GS400 fitment, and the part number RA-4 is also referenced in interchange data for application matching.