Air Filter for 2023-2025 Thomas Saf-T-Liner & More - Wix 49666

Keep dust and debris out of the intake with the Wix air filter 49666, a corrugated-style primary air filter designed to trap airborne contaminants before they reach the engine. It is listed for many models, among them the 2008-2013 Ford F-650, 2008-2013 Ford F-750 and 2023-2025 Thomas Saf-T-Liner. It is a direct-fit replacement for the listed applications; see the "Vehicles it fits" section for the full list and engine details.

• Premium filtration media: WIX HD air filters use premium media supported by pleat stabilization beads, with skip-a-pleat media stabilization on applicable filters.
• Durable construction: Polyurethane and/or high-strength, corrosion-resistant end caps are paired with expanded metal bodies, built for durability.
• Service interval: WIX recommends its HD air filters for OEM air filter change intervals.
• Lab tested: WIX states a minimum efficiency of 99.9% contaminant removal in ISO 5011 laboratory testing of representative HD air filters.

As the primary filter, it cleans the air drawn into the engine intake. When comparing Wix engine air filters, keep in mind that signs this one may need replacing include a visibly dirty or clogged element, torn or damaged media, damaged end caps, or reaching the scheduled change interval. When you swap it, check the filter housing for loose debris before installing the new element.