Replace the engine air filter-Your engine air filter is the first part of the engine that encounters dust, dirt and road debris. Keeping the air filter clean and replacing the dirty air filter regularly can improve fuel economy and engine performance. The air filter optimizes performance by allowing maximum air flow, providing up to 99% filtration efficiency. Professional design-This air filter is made of the most advanced filter paper and can provide up to 50% power and acceleration. Air filter guarantees the fit and allows your 2017-2019 overloaded 6.7-liter engine or 2017-2018 F-450 F-550 overloaded 6.7-liter -powered stroke engine to breathe cleanly Air to 20,000 miles. Compatibility-This engine air filter is replaced with 17 18 19 F250 6.7L Power Stroke Overload Air Filter / 17 18 19 6.7L Super Duty Air Filter / 17 18 F450 6.7L Super Duty Air Filter / 17 18 F550 6.7L Super Duty Air Filter. Replace FA1927, -1927, HC3Z-9601-A, HC3Z9601A, HC34-9601-AF, HC349601AF, PA8219. The high-quality materials used meet or exceed the standards, Not easy to damage and easy to install Colour: yellow Material: ABS Package Contents: 1 x Air filter Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.