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This is a genuine Wix Filters 42113 Engine Air Filter designed to replace select original equipment elements in classic Ford-family V8s from 1970-1978, including LTD, Galaxie, Country Squire, Ranchero, Thunderbird, Cougar, Monterrey, Marquis and Continental fitted with 5.8, 6.6, 7.0 or 7.5-liter gasoline engines. It serves to keep intake air clean by trapping particulates before they enter the combustion chambers.
Constructed with high-quality cellulose filter media supported by pleats, this filter features durable plastic end caps (top and bottom). It bears a rated airflow of approximately 150 cubic feet per minute (CFM). Diameter is approximately 13.00 inches outer, ~11.203 inches inner, with a height of ~2.51 inches. These dimensions are derived from manufacturer confirmed specifications.
Using this Wix 42113 offers improved engine protection through reduced contamination, contributing to longer engine life, smoother performance and potentially better fuel efficiency under light-duty driving. It is intended as a direct replacement for OE filters in the listed vintage applications, maintaining proper sealing and airflow.