Clean, unrestricted air is vital to the performance of a diesel engine. Nobody understands this better than those who operate their diesel equipment in the harshest environments. U.S. Military, earth moving, and agricultural applications rely on state-of-the-art technology to deliver optimal performance. Now Ford is the first to bring this off-highway technology to the diesel pickup truck market. The new Motorcraft 7.3L AIS (Air Induction System) Extended Life Filter Kit is more efficient than conventional air filters, providing similar performance of a heavy duty truck air filter. In fact, the 7.3L AIS Extended Life Filter Kit has the same filter media technology used in the M1 Abrams tank!