This reusable K&N Filtercharger is a direct replacement for factory filters. It outflows any other filter--up to 900 cfm--for power gains up to 15 horsepower. The K&N air filter uses a surgical cotton fabric soaked in oil as its tack barrier. Sandwiched between aluminum screen wire, the square holes in the cotton catch tumbling air and straighten it out. Since air moving in a straight line flows faster, the filter can actually improve airflow. The K&N filter can be covered by 1/4 in. of debris before air restriction makes cleaning necessary. Then you wet it down or roll it in cleaning solution, hose it off, let dry, apply the air filter oil, and reuse it. Filters come pre-oiled. This part fits the following applications: Make Model Engine Year FORD F250 4WD PICKUP 6.9L 1983 - 1987 FORD F250 4WD PICKUP 7.3L 1988 - 1993 FORD F350 4WD PICKUP 6.9L 1983 - 1987 FORD F350 4WD PICKUP 7.3L 1988 - 1993 Technical: Outside diameter: 11 in. Inside diameter: 8.375 in. Height: 4.937 in. |
