ECOGARD XF10013 Engine Fuel Filter - Premium Replacement Fits Ford Mustang, Fairlane, LTD, Thunderbird, Custom 500, Country Sedan, Country Squire, Custom, Falcon, Galaxie, Galaxie 500, Ranch Wagon COMPATIBILITY with 1964-1969 Ford Mustang, 1968-1969 Mercury Cougar, 1964-1969 Ford Fairlane, 1965-1969 Ford LTD, 1965-1969 Ford Thunderbird, 1969-1969 Mercury Montego, 1968-1969 Mercury Marquis, 1966-1969 Mercury Monterey, 1968-1969 Ford Custom 500. PROTECT YOUR ENGINE against damage by preventing foreign particles from reaching the fuel injector or carburetor. Constructed with a multi-layered material that has optimum filtering efficiency. IMPROVE ENGINE PERFORMANCE with ECOGARD Fuel Filters. A clogged or dirty gas filter can result in difficulty starting, hesitation upon accelerating, decreased fuel economy, and rough idling. PRECISE INLET/OUTLET CONNECTIONS for trouble-free installation. SPECIFICALLY ENGINEERED AND TESTED for original equipment fuel filters fit, form, and function. Meets the requirements for maintaining new vehicle warranties. Replaces: FRAM G23 Purolator F10013 WIX 33045 OE C5AZ-9155B.