Caterpillar is the world's largest manufacturer of generators, offering the largest range of specifications. If you need a diesel generator set with 7.5 to 17,550 kVA of power potential you’ll have peace of mind knowing CAT® diesel-fueled generator sets are built to world-class standards for high efficiency, low fuel consumption and global emissions compliance. CAT® diesel generators come in a range of sizes to match your power needs so selecting the right diesel generator for your application, and installing it, is simple.