A-AF25133 Precleaner, Air (QTY 1)One New Aftermarket Replacement Air Precleaner Replaces AF25133 This air precleaner mounts as the first stage of an engine air intake system, removing the majority of larger dust, dirt, and debris particles before they can reach the primary air filter element. By intercepting heavy contaminants early, the precleaner significantly extends primary air filter service life and helps protect the engine in demanding agricultural, construction, and lawn and