Wix 49146 Air Filter

WIX 49146 Engine Air Filter Overview

The WIX 49146 engine air filter is a panel-style air filter built for dependable engine protection in everyday driving and harsher conditions. It is sized for select Lexus applications and is a direct replacement for routine air filter service on vehicles such as the Lexus IS250, IS350, GS350, and GS430.

With a synthetic media construction and a closed top design, this filter is made to support consistent airflow control while helping capture airborne contaminants from road dust, construction debris, and stop-and-go traffic. The WIX 49146 is a practical choice for drivers looking for an OE-style air filter replacement for Lexus IS250 and GS-series fitments.

Key Features

• Panel-style engine air filter for light-duty passenger vehicles
• Synthetic media for durable filtration performance
• Closed top design with a polyurethane seal where applicable
• Built for normal and severe driving conditions, including short trips and interstate use
• Laboratory-tested efficiency of at least 99.5% per ISO 5011 based on WIX testing reference
• Recommended for OEM air filter change intervals

Detailed Product Description

WIX 49146 measures 9.500 inches long, 9.375 inches wide, and 2.140 inches high, making it a panel air filter sized for the specified Lexus applications. The enhanced cellulose-based media is treated with phenolic resin to improve durability against moisture ingestion, while the high-tear-strength polyurethane seal is intended to hold up under hot and cold temperature swings when used in applicable designs. For drivers searching for a Lexus IS250 air filter, Lexus IS350 air filter, or Lexus GS350 air filter replacement, this part number provides a direct service option that aligns with routine maintenance intervals.

This part cross-references FRAM CA10347 and NAPA Gold Filters 9146 for the same application.

What It Helps Address

• Restricted airflow caused by a dirty or clogged engine air filter
• Dust and debris entering the intake system during daily driving
• Reduced filtration performance in stop-and-go or dusty-road conditions
• Moisture-related media wear in demanding weather or road environments
• Routine maintenance needs for Lexus IS250, IS350, GS350, and GS430 models

Installation Notes and Tips

Verify the air box dimensions and match the filter to the vehicle application before installation. Replace the filter at the manufacturer-recommended service interval, or sooner if driving conditions include heavy dust, construction zones, or frequent short trips. Confirm the seal seats evenly in the housing so unfiltered air does not bypass the element.

Quality Assurance

WIX states that this filter is recommended for OEM air filter change intervals and that laboratory testing per ISO 5011 shows at least 99.5% efficiency based on the referenced WIX test data. The construction uses moisture-resistant media treatment and a durable seal design to support consistent service life in normal and severe driving conditions.

Compatible Vehicles

• Fits 2006-2013 Lexus IS250, N/A
• Fits 2006-2013 Lexus IS350, N/A
• Fits 2007-2011 Lexus GS350, N/A
• Fits 2006-2007 Lexus GS430, N/A