Pronto PA5278 Air Filter

Engine Air Filter for Lexus GS300 and IS300

Pronto PA5278 is a panel-style engine air filter built for direct replacement service in select Lexus applications. It is sized with Side A Length 9.55 in and Side B Length 8.23 in to match the specified airbox fitment for 1998-2005 Lexus GS300 and 2001-2005 Lexus IS300.

Key Features

• Panel air filter design for engine intake service
• Side A Length: 9.55 in
• Side B Length: 8.23 in
• Direct fit for Lexus GS300 and Lexus IS300 applications listed below
• Pronto PA5278 replacement part number for catalog matching

Fitment Details

• Fits 1998-2005 Lexus GS300, N/A
• Fits 2001-2005 Lexus IS300, N/A

This engine air filter cross-references Beck/Arnley 042-1602 for the same application. It also cross-references Standard Ignition 6465 for the same application.

What This Filter Helps Address

• Restricted airflow caused by a dirty or clogged engine air filter
• Dust and debris entering the intake system
• Reduced intake efficiency from a worn filter element
• Routine maintenance needs on Lexus GS300 and IS300 intake systems

Installation Notes and Tips

Verify the air filter housing dimensions before installation and compare the old filter to the new panel shape. Confirm the vehicle year and model match the listed fitment for Pronto PA5278 before service. Replace the filter at regular maintenance intervals or sooner in dusty driving conditions.

Quality Assurance

Pronto PA5278 is cataloged as an engine air filter for the listed Lexus applications and is identified by multiple interchange references for fitment verification.