1. Introduction
This instruction manual provides essential information for the proper installation, operation, and maintenance of the Wix Air Filter, Model 42526. Adhering to these guidelines will help ensure optimal performance and longevity of the product. Please read this manual thoroughly before proceeding with any procedures.
2. Product Overview
The Wix Air Filter 42526 is an engine air filter designed to protect your vehicle's engine from harmful contaminants. It is engineered to provide a clean air supply to the engine, which is crucial for efficient combustion and overall engine health. Regular replacement of the air filter according to manufacturer recommendations is vital for maintaining engine performance and fuel economy.

This image displays two views of the Wix Air Filter 42526. On the left, the filter is shown lying horizontally, revealing its cylindrical shape with a black rubber seal on one end and a metal ring on the other. On the right, the filter stands vertically, showcasing its full height and the mesh-like outer structure protecting the filter media.
3. Specifications
| Brand | Wix |
| Model Number | 42526 |
| Product Type | Engine Air Filter |
| Dimensions (L x W x H) | 11.7" x 10.6" x 2" |
| Item Weight | 9 pounds |
| Fit Type | Vehicle Specific Fit |
| UPC | 765809425262 |
4. Setup and Installation
The installation of the Wix Air Filter 42526 typically involves replacing an existing air filter within the vehicle's air filter housing. It is crucial to consult your vehicle's specific service manual for detailed, step-by-step instructions and safety precautions, as procedures can vary significantly between vehicle makes and models.
- Locate the Air Filter Housing: This is usually a black plastic box located under the hood, connected to the engine's air intake system.
- Open the Housing: Unclip or unscrew the fasteners securing the air filter housing cover.
- Remove the Old Filter: Carefully lift out the old air filter. Note its orientation for correct installation of the new filter.
- Clean the Housing: Wipe out any debris or dust from inside the air filter housing.
- Install the New Filter: Insert the Wix Air Filter 42526 into the housing, ensuring it sits correctly and the seals are properly seated.
- Secure the Housing: Replace the cover and fasten all clips or screws securely.
Important: Ensure the engine is off and cool before beginning any installation procedures. Disconnect the battery's negative terminal if instructed by your vehicle's manual.
5. Operating Principles
Once installed, the Wix Air Filter 42526 functions as a critical component of your vehicle's engine air intake system. It filters airborne particles such as dust, pollen, dirt, and debris before they can enter the engine's combustion chambers. A clean air filter ensures:
- Optimal engine performance and power output.
- Improved fuel efficiency.
- Reduced engine wear by preventing abrasive particles from reaching internal components.
- Lower emissions.
The filter operates continuously whenever the engine is running, drawing air through its media to trap contaminants.
6. Maintenance
Regular maintenance of your air filter is essential for vehicle health. The Wix Air Filter 42526 should be inspected and replaced according to your vehicle manufacturer's recommended service intervals, typically found in your owner's manual. These intervals can vary based on driving conditions (e.g., dusty environments may require more frequent replacement).
Inspection:
- Visually inspect the filter element for dirt, debris, leaves, or signs of damage.
- Hold the filter up to a light source; if light does not pass through easily, the filter is likely clogged and requires replacement.
- Check the rubber seals for cracks or deterioration.
Replacement:
Replace the air filter when it appears dirty, clogged, or damaged, even if it's before the recommended service interval. A clogged air filter can restrict airflow, leading to reduced engine performance and increased fuel consumption.
7. Troubleshooting
While the Wix Air Filter 42526 is a passive component, issues related to its condition can manifest as vehicle performance problems.
- Reduced Engine Performance: If your engine feels sluggish or lacks power, especially during acceleration, a clogged air filter could be restricting airflow. Inspect and replace the filter if necessary.
- Decreased Fuel Economy: A dirty air filter can cause the engine to work harder, leading to increased fuel consumption.
- Unusual Engine Noises: While less common, a severely clogged filter or improperly seated housing can sometimes lead to whistling or sucking noises.
- Check Engine Light: In some modern vehicles, a very dirty air filter can trigger the check engine light due to issues with air-fuel mixture readings.
If you experience any of these symptoms, inspect your air filter. If the filter appears clean and properly installed, consult a qualified mechanic for further diagnosis.
8. Warranty and Support
For information regarding the warranty coverage for your Wix Air Filter 42526, please refer to the warranty documentation provided with your purchase or visit the official Wix Filters website. Warranty terms and conditions typically cover manufacturing defects.
For technical support, product inquiries, or assistance with specific applications, please contact Wix Filters customer service directly. Contact information can usually be found on the product packaging or the official Wix Filters website.
Wix Filters Official Website: www.wixfilters.com





