There are roughly 30 diesel engines in the Lister-Petter family ranging from a 2.8 bhp (2.1kW) single cylinder to a 160.9 bhp (120 kW) six cylinder turbo. The engines are either air or water-cooled, direct or indirect injection, naturally aspirated or turbocharged, and there's a specification to suit almost every application. 800-969-6121