Wix 42864 Air Filter

WIX 42864 Engine Air Filter Overview

The WIX 42864 engine air filter is a panel-style replacement built for dependable airflow control and engine protection in everyday driving. It is a direct-fit option for select Cadillac STS and Cadillac SRX applications, including 2004-2009 Cadillac SRX and 2005-2011 Cadillac STS.

Key Features

• Panel-style engine air filter for light-duty use
• Synthetic media with enhanced durability
• Phenolic resin-treated cellulose construction for moisture resistance
• High-tear strength polyurethane seal on applicable designs
• Built with 30% more media than comparable OES filters
• Laboratory-tested to ISO 5011 standards with at least 99.5% efficiency based on Wix 42389
• Compatible with Cadillac STS and Cadillac SRX fitments listed below

Detailed Description

WIX part number 42864 is an engine air filter designed to help maintain clean intake airflow under normal commuting and more demanding conditions such as stop-and-go traffic, dirt roads, construction zones, short trips, and highway driving. Its synthetic panel media and moisture-resistant treatment support consistent filtration performance, while the polyurethane seal helps maintain a secure fit where specified. For buyers searching for a Cadillac STS air filter or Cadillac SRX engine air filter, this WIX 42864 replacement matches the listed applications and supports routine OEM-style service intervals.

This part cross-references FRAM CA9953 and NAPA Gold Filters 2864 for the same application.

What It Helps Address

• Restricted engine airflow from a loaded or dirty air filter
• Dust and debris entering the intake system
• Reduced filtration performance during stop-and-go driving
• Moisture-related media breakdown in harsh weather conditions
• Routine maintenance needs for Cadillac STS and Cadillac SRX air filter service

Installation Notes and Tips

Verify the existing filter dimensions and housing style before installation. This is a panel air filter with a closed top and dimensions of 13.880 inches long, 9.000 inches wide, and 1.250 inches high. Replace the filter at the vehicle manufacturer’s recommended interval, or sooner if driving conditions are dusty or severe.

Quality Assurance

WIX designs this filter for engine protection in normal and severe driving conditions and validates filtration performance through ISO 5011 laboratory testing. The construction uses enhanced media and a durable seal design to support consistent service in the listed Cadillac applications.