Diesel pressure power washer units are designed for the same cleaning applications as our mobile gasoline pressure power washers, but they are equipped with extended life diesel engines. Large diesel motors allow higher flows and pressures not possible with gasoline power washers. Our heavy-duty industrial high pressure power washers typically use metal wands and stainless steel nozzle tips, and are equipped with the durable, long life pumps. These versatile models are intended for every day and 8 or more hrs a day use. They are the best built powerwashers in powerwashing industry and are very popular among pressurecleaning contractors and are heavily used by the US Military.