Our custom fabricated site trailer units are configured to customers requirements. Our preferred engines are Caterpillar, but we do offer John Deere, Perkins, Cummins, Volvo depending on what is available at the time of the project. YANMAR is our prefered choice for the smaller units with HATZ as an alternative. All the units have integrated fuel tanks. We offer SAE bellhousing coupled pumps as standard, but long coupled units are also available.