Mercury - Fuel Filter Screen Jet Drive Fuel System Cloth Mesh Construction F438653. Overview. When you run a jet drive outboard, you depend on clean, steady fuel more than most boaters. There's nothing quite like the comfort you feel when your engine fires right up, smooth and sure, even after a long week sitting in the driveway. A dependable fuel screen is one of those little parts that quietly keep everything running right. With the Mercury Marine part F438653, you get that same sense of confi