Wix 49450 Air Filter - Main

WIX 49450 Engine Air Filter Overview

The WIX 49450 engine air filter is a panel-style replacement built for dependable engine protection in everyday driving and harsher conditions. It is a direct-fit air filter for select Hyundai Sonata and Kia Optima/Cadenza applications, including vehicles that call for OE part number 281133S100.

• Panel-style engine air filter for OEM-style service intervals
• Synthetic media with enhanced cellulose construction for durability
• 30% more media than OES filters for increased filtration surface area
• Phenolic resin treatment helps resist moisture ingestion
• High-tear strength polyurethane seal for hot and cold temperature exposure
• Laboratory-tested to ISO 5011 standards with at least 99.5% efficiency based on Wix 42389
• Part number: 49450

Detailed Product Description

WIX 49450 is an engine air filter designed as a replacement panel filter for normal commuting, stop-and-go traffic, short trips, dirt roads, construction-zone exposure, and interstate driving. Its synthetic media and treated cellulose construction are intended to maintain airflow while capturing airborne contaminants before they reach the engine. The filter’s dimensions are 10.906 inches long, 8.937 inches wide, and 1.654 inches high, with a closed top inner diameter and Class B, LD duty classification. This part number 49450 is listed for 2018 Kia Optima, 2014-2016 Kia Cadenza, 2015 Hyundai Sonata, 2011-2014 Hyundai Sonata, 2013-2014 Kia Optima, and 2011-2013 Kia Optima.

This part cross-references FRAM CA11116 and NAPA Gold Filters 9450 for the same application.

Vehicle Fitment

• Fits 2018 Kia Optima, Main. Original Equipment Part Number 281133S100.
• Fits 2014-2016 Kia Cadenza, N/A. Original Equipment Part Number 281133S100.
• Fits 2015 Hyundai Sonata, N/A. Original Equipment Part Number 281133S100.
• Fits 2011-2014 Hyundai Sonata, N/A.
• Fits 2013-2014 Kia Optima, N/A. Original Equipment Part Number 281133S100.
• Fits 2011-2013 Kia Optima, N/A.

Installation Notes and Tips

Verify the existing air box dimensions and OE part number before installation. Inspect the air cleaner housing for dirt, debris, or damaged sealing surfaces, and make sure the filter seats evenly in the housing so unfiltered air does not bypass the media. Replace the filter at the manufacturer-recommended service interval, or sooner if the vehicle is driven in dusty or high-contamination conditions.

Quality Assurance

WIX specifies this filter for OEM air filter change intervals and backs the design with ISO 5011 laboratory testing data showing at least 99.5% efficiency based on Wix 42389. The moisture-resistant media treatment and polyurethane seal are selected to support durability across a wide temperature range.