At PowerPort we are authorized marine dealers of the following brands: Caterpillar, MAN, John Deere and Nanni Diesel. Because we are dealers, we can usually deliver quickly. In addition, we have a number of used and new engines in stock, so that we can serve you quickly and efficiently. If you have specific wishes or questions about another engine brand, such as MTU, Detroit Diesel or another brand, please let us know. We are happy to be of service to you.